When the zero field check is enabled, the router discards RIPv1 messages in which zero fields contain non-zero values. If all messages are trustworthy, disable this feature to reduce the workload of the CPU.

Examples

# Disable zero field check on RIPv1 messages for RIP process 1.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] undo checkzero

default cost

Use default cost to configure a default metric for redistributed routes.

Use undo default cost to restore the default.

Syntax

default cost value

undo default cost

Default

The default metric of redistributed routes is 0.

Views

RIP view

Predefined user roles

network-admin

Parameters

value: Specifies a default metric for redistributed routes, in the range of 0 to 16.

Usage guidelines

When you use the import-route command to redistribute routes from another routing protocol without specifying a metric, the metric specified by the default cost command applies.

Examples

# Configure a default metric of 3 for redistributed routes.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] default cost 3

Related commands

import-route

default-route

Use default-route to configure all interfaces running a RIP process to advertise a default route with a specified metric to RIP neighbors.

Use undo default-route to restore the default.

Syntax

default-route { only | originate } [ cost cost ]

undo default-route

Default

No default route is sent to RIP neighbors.

Views

RIP view

Predefined user roles

network-admin

Parameters

only: Advertises only a default route.

originate: Advertises both a default route and other routes.

cost: Specifies a cost for the default route, in the range of 1 to 15. The default is 1.

Usage guidelines

A RIP router configured with this feature does not receive any default route from RIP neighbors.

Examples

# Configure all interfaces running RIP process 100 to send only a default route with a metric of 2 to RIP neighbors.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] default-route only cost 2

Related commands

rip default-route

display rip

Use display rip to display state and configuration information for a RIP process.

Syntax

display rip [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies a RIP process by its ID in the range of 1 to 65535. If no process is specified, the command displays state and configuration information for all RIP processes.

Examples

# Display current state and configuration information for all RIP processes.

<Sysname> display rip

Public VPN-instance name:

RIP process: 1

RIP version: 1

Preference: 100

Fast-reroute:

Checkzero: Enabled

Default cost: 0

Summary: Enabled

Host routes: Enabled

Maximum number of load balanced routes: 8

Update time : 30 secs Timeout time : 180 secs

Suppress time : 120 secs Garbage-collect time : 120 secs

Update output delay: 20(ms) Output count: 3

Silent interfaces: None

Default routes: Originate Default routes cost: 3

Verify-source: Enabled

Networks:

1.0.0.0

Configured peers:

197.168.6.2

Triggered updates sent: 0

Number of routes changes: 1

Number of replies to queries: 0

Table 1 Command output

Field	Description
Public VPN-instance name/Private VPN-instance name	Public network or VPN where the RIP process runs.
RIP process	RIP process ID.
RIP version	RIP version 1 or 2.
Preference	RIP preference.
Fast-reroute	This field is not supported in the current software version. RIP FRR.
Checkzero	Indicates whether the zero field check is enabled for RIPv1 messages.
Default cost	Default cost of redistributed routes.
Summary	Indicates whether route summarization is enabled.
Host routes	Indicates whether to receive host routes.
Update time	RIP update interval.
Timeout time	RIP timeout time.
Suppress time	RIP suppress interval.
Update output delay	RIP packet sending interval.
Output count	Maximum number of RIP packets sent at each interval.
Garbage-collect time	RIP garbage collection interval.
Silent interfaces	Silent interfaces, which do not periodically send updates.
Default routes	Indicates whether a default route is sent to RIP neighbors. · only—Only a default route is advertised. · originate—A default route is advertised along with other routes. · disable—No default route is advertised.
Default routes cost	Metric for a default route.
Verify-source	Indicates whether the source IP address is checked for received RIP routing updates.
Networks	Networks enabled with RIP.
Configured peers	Configured neighbors.
Triggered updates sent	Number of triggered updates sent.
Number of routes changes	Number of route changes.
Number of replies to queries	Number of RIP responses.

display rip database

Use display rip database to display active routes for a RIP process. RIP advertises active routes in RIP routing updates.

Syntax

display rip process-id database [ ip-address { mask-length | mask } ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies a RIP process by its ID in the range of 1 to 65535.

ip-address { mask-length | mask }: Displays active routes for the specified IP address. Without this argument, the command displays all actives routes for a RIP process.

Examples

# Display active routes for RIP process 100.

<Sysname> display rip 100 database

1.0.0.0/8, auto-summary

1.1.1.0/24, cost 16, interface summary

1.1.1.0/24, cost 0, nexthop 1.1.1.1, RIP-interface

1.1.2.0/24, cost 0, imported

2.0.0.0/8, auto-summary

2.0.0.0/8, cost 1, nexthop 1.1.1.2

# Display active routes with destination IP address 1.1.1.0 and mask length 24 for RIP process 100.

<Sysname> display rip 100 database 1.1.1.0 24

1.1.1.0/24, cost 16, interface summary

1.1.1.0/24, cost 0, nexthop 1.1.1.1, RIP-interface

Table 2 Command output

Field	Description
cost	Cost of the route.
auto-summary	Indicates that the route is a RIP automatic summary route.
interface summary	Indicates that the route is a RIP interface summary route.
nexthop	Address of the next hop.
RIP-interface	Direct route on a RIP-enabled interface.
imported	Indicates that the route is redistributed from another routing protocol.

display rip interface

Use display rip interface to display RIP interface information for a RIP process.

Syntax

display rip process-id interface [ interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies a RIP process by its ID in the range of 1 to 65535.

interface-type interface-number: Specifies an interface by its type and number. If no interface is specified, the command displays information about all RIP interfaces for the RIP process.

Examples

# Display information about all interfaces for RIP process 1.

<Sysname> display rip 1 interface

Interface: Vlan-interface2

Address/Mask: 1.1.1.1/24 Version: RIPv1

MetricIn: 0 MetricIn route policy: Not designated

MetricOut: 1 MetricOut route policy: Not designated

Split-horizon/Poison-reverse: On/Off Input/Output: On/On

Default route: Off

Current number of packets/Maximum number of packets: 0/2000

Table 3 Command output

Field	Description
Interface	Name of an interface running RIP.
Address/Mask	IP address and mask of the interface.
Version	RIP version running on the interface.
MetricIn	Additional metric added to incoming routes.
MetricIn route policy	This field is not supported in the current software version. Name of the routing policy used to add an additional metric for incoming routes. If no routing policy is used, the field displays Not designated.
MetricOut	Additional metric added to outgoing routes.
MetricOut route policy	This field is not supported in the current software version. Name of the routing policy used to add an additional routing metric for outgoing routes. If no routing policy is used, the field displays Not designated.
Split-horizon	Indicates whether split horizon is enabled: · on—Enabled. · off—Disabled.
Poison-reverse	Indicates whether poison reverse is enabled: · on—Enabled. · off—Disabled.
Input/Output	Indicates whether the interface is enabled to receive and send RIP messages: · on—Enabled. · off—Disabled.
Default route	Indicates whether to send a default route to RIP neighbors: · Only—Advertises only a default route. · Originate—Advertises both a default route and other routes. · No-originate—Advertises only non-default routes. · Off—Advertises no default route.
Default route cost	Metric for a default route.
Current number of packets /Maximum number of packets	Number of RIP packets to be sent/maximum number of RIP packets that can be sent within a certain interval.

display rip route

Use display rip route to display routing information for a RIP process.

Syntax

display rip process-id route [ ip-address { mask-length | mask } [ verbose ] | peer ip-address | statistics ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies a RIP process by its ID in the range of 1 to 65535.

ip-address { mask-length | mask }: Displays route information for the specified IP address.

verbose: Displays all routing information for the specified destination IP address. Without this keyword, the command displays only information about optimal routes with the specified destination IP address.

peer ip-address: Displays route information learned from the specified neighbor.

statistics: Displays route statistics, including the total number of routes and number of routes from each neighbor.

Usage guidelines

If no optional parameters are specified, the display rip process-id route command displays all routing information for a RIP process.

Examples

# Display all routing information for RIP process 1.

<Sysname> display rip 1 route

Route Flags: R – RIP

A - Aging, S - Suppressed, G - Garbage-collect

O - Optimal, F - Flush to RIB

----------------------------------------------------------------------------

Peer 1.1.1.1 on Vlan-interface2

Destination/Mask Nexthop Cost Tag Flags Sec

3.0.0.0/8 1.1.1.1 1 0 RAOF 24

# Display specified routing information for RIP process 1.

<Sysname> display rip 1 route 3.0.0.0 8 verbose

Route Flags: R – RIP

A - Aging, S - Suppressed, G - Garbage-collect

O - Optimal, F - Flush to RIB

----------------------------------------------------------------------------

Peer 1.1.1.1 on Vlan-interface2

Destination/Mask OrigNexthop/RealNexthop Cost Tag Flags Sec

3.0.0.0/8 1.1.1.1/1.1.1.1 1 0 RAOF 16

Table 4 Command output

Field	Description
Route Flags	· R—RIP route. · A—The route is aging. · S—The route is suppressed. · G—The route is in Garbage-collect state. · O—The route is an optimal route. · F—The route has been flushed to the RIB.
Peer X.X.X.X on interface-type interface-number	Routing information learned from a neighbor on a RIP interface.
Local route	Locally generated direct routes.
Destination/Mask	Destination IP address and subnet mask.
Nexthop	Next hop of the route.
OrigNexthop/RealNexthop	If the route is from a directly connected neighbor, the original next hop is the real next hop. If the route is from an indirectly connected neighbor, the RealNexthop field displays the recursive next hop for the route. Otherwise, the field is blank.
Cost	Cost of the route.
Tag	Route tag.
Flags	Route state.
Sec	Remaining time of the timer corresponding to the route state.

# Display routing statistics for RIP process 1.

<Sysname> display rip 1 route statistics

Peer Optimal/Aging Garbage

1.1.1.1 1/1 0

Total 3/1 0

Table 5 Command output

Field	Description
Peer	IP address of a neighbor.
Optimal	Total number of optimal routes.
Aging	Total number of aging routes.
Garbage	Total number of routes in the Garbage-collection state.
Local	Total number of locally generated direct routes.
Total	Total number of routes learned from all RIP neighbors.

filter-policy export

Use filter-policy export to configure RIP to filter redistributed routes.

Use undo filter-policy export to remove the filtering.

Syntax

filter-policy acl-number export [ protocol [ process-id ] | interface-type interface-number ]

undo filter-policy export [ protocol [ process-id ] | interface-type interface-number ]

Default

RIP does not filter redistributed routes.

Views

RIP view

Predefined user roles

network-admin

Parameters

acl-number: Specifies an ACL by its number in the range of 2000 to 3999 to filter redistributed routes.

protocol: Filters routes redistributed from the specified routing protocol, which can be bgp, direct, isis, ospf, rip, or static.

process-id: Specifies the process ID of the specified routing protocol, in the range of 1 to 65535. Specify a process ID when the routing protocol is rip, ospf, or isis. If no process ID is specified, the default process ID is 1.

interface-type interface-number: Specifies an interface by its type and number.

Usage guidelines

You can configure only one filtering policy with the command. Without any protocol or interface specified, the filtering policy applies globally. If you execute the command multiple times, the most recent configuration takes effect.

To remove the filtering policy configured for a protocol or an interface, use the undo filter-policy export command with the protocol or interface specified.

To reference an advanced ACL (with a number from 3000 to 3999) in the command, configure the ACL using one of the following methods:

· To deny/permit a route with the specified destination, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard command.

· To deny/permit a route with the specified destination and mask, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard destination dest-addr dest-wildcard command.

The source keyword specifies the destination address of a route and the destination keyword specifies the subnet mask of the route. The specified subnet mask must be contiguous. Otherwise, the mask configuration does not take effect.

Examples

# Use ACL 2000 to filter redistributed routes.

<Sysname> system-view

[Sysname] acl number 2000

[Sysname-acl-basic-2000] rule deny source 192.168.10.0 0.0.0.255

[Sysname-acl-basic-2000] quit

[Sysname] rip 1

[Sysname-rip-1] filter-policy 2000 export

# Configure ACL 3000 to permit only route 113.0.0.0/16 to pass. Use ACL 3000 to filter redistributed routes.

<Sysname> system-view

[Sysname] acl number 3000

[Sysname-acl-adv-3000] rule 10 permit ip source 113.0.0.0 0 destination 255.255.0.0 0

[Sysname-acl-adv-3000] rule 100 deny ip

[Sysname-acl-adv-3000] quit

[Sysname] rip 1

[Sysname-rip-1] filter-policy 3000 export

Related commands

· acl (ACL and QoS Command Reference)

· import-route

filter-policy import

Use filter-policy import to configure RIP to filter received routes.

Use undo filter-policy import to remove the configuration.

Syntax

filter-policy acl-number import [ interface-type interface-number ]

undo filter-policy import [ interface-type interface-number ]

Default

RIP does not filter received routes.

Views

RIP view

Predefined user roles

network-admin

Parameters

acl-number: Specifies an ACL by its number in the range of 2000 to 3999 to filter received routes.

interface-type interface-number: Specifies an interface by its type and number.

Usage guidelines

You can configure only one filtering policy with the command. Without any interface specified, the filtering policy applies globally. If you execute the command multiple times, the most recent configuration takes effect.

To remove the filtering policy configured for an interface, use the undo filter-policy import command with the interface specified.

To reference an advanced ACL (with a number from 3000 to 3999) in the command, configure the ACL using one of the following methods:

· To deny/permit a route with the specified destination, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard command

· To deny/permit a route with the specified destination and mask, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard destination dest-addr dest-wildcard command.

The source keyword specifies the destination address of a route and the destination keyword specifies the subnet mask of the route. The subnet mask must be contiguous. Otherwise, the mask configuration does not take effect.

Examples

# Use ACL 2000 to filter received RIP routes.

<Sysname> system-view

[Sysname] acl number 2000

[Sysname-acl-basic-2000] rule deny source 192.168.10.0 0.0.0.255

[Sysname-acl-basic-2000] quit

[Sysname] rip 1

[Sysname-rip-1] filter-policy 2000 import

# Configure ACL 3000 to permit only route 113.0.0.0/16 to pass. Use ACL 3000 to filter received routes.

<Sysname> system-view

[Sysname] acl number 3000

[Sysname-acl-adv-3000] rule 10 permit ip source 113.0.0.0 0 destination 255.255.0.0 0

[Sysname-acl-adv-3000] rule 100 deny ip

[Sysname-acl-adv-3000] quit

[Sysname] rip 1

[Sysname-rip-1] filter-policy 3000 import

Related commands

acl (ACL and QoS Command Reference)

graceful-restart

Use graceful-restart to enable GR for RIP.

Use undo graceful-restart to disable RIP GR capability.

Syntax

graceful-restart

undo graceful-restart

Default

RIP GR is disabled.

Views

RIP view

Predefined user roles

network-admin

Examples

# Enable GR for RIP process 1.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] graceful-restart

host-route

Use host-route to enable host route reception.

Use undo host-route to disable host route reception.

Syntax

host-route

undo host-route

Default

RIP receives host routes.

Views

RIP view

Predefined user roles

network-admin

Usage guidelines

A router might receive many host routes from the same subnet. These routes are not helpful for routing and occupy a large number of resources. To solve this problem, use the undo host-route command to disable RIP from receiving host routes.

This command takes effect only for RIPv2 routes.

Examples

# Disable RIP from receiving host routes.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] undo host-route

import-route

Use import-route to enable route redistribution from another routing protocol.

Use undo import-route to disable route redistribution.

Syntax

import-route protocol [ process-id | all-processes | allow-ibgp ] [ cost cost | tag tag ] *

undo import-route protocol [ process-id | all-processes ]

Default

RIP does not redistribute routes from any other routing protocol.

Views

RIP view

Predefined user roles

network-admin

Parameters

protocol: Specifies a routing protocol from which RIP redistributes routes. It can be bgp, direct, isis, ospf, rip, or static.

process-id: Specifies a process by its ID in the range of 1 to 65535. The default is 1. This argument is available only when the protocol is isis, rip, or ospf.

all-processes: Enables route redistribution from all the processes of the specified protocol. This keyword takes effect only when the protocol is rip, ospf, or isis.

allow-ibgp: Allows redistribution of IBGP routes. This keyword is available when the protocol argument is set to bgp.

cost cost: Specifies a cost for redistributed routes, in the range of 0 to 16. The default cost is 0.

tag tag: Specifies a tag for marking redistributed routes, in the range of 0 to 65535. The default is 0.

Usage guidelines

The import-route bgp command redistributes only EBGP routes. The import-route bgp allow-ibgp command additionally redistributes IBGP routes and might cause routing loops. Therefore, use it with caution.

This command redistributes only active routes. To view route state information, use the display ip routing-table protocol command.

The undo import-route protocol all-processes command removes only the configuration made by the import-route protocol all-processes command. It does not remove the configuration made by the import-route protocol process-id command.

Examples

# Redistribute static routes into RIP, and set the cost for redistributed routes to 4.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] import-route static cost 4

Related commands

default cost

maximum load-balancing

Use maximum load-balancing to specify the maximum number of equal-cost multi-path (ECMP) routes for load balancing.

Use undo maximum load-balancing to restore the default.

Syntax

maximum load-balancing number

undo maximum load-balancing

Default

The maximum number of RIP ECMP routes is 8.

Views

RIP view

Predefined user roles

network-admin

Parameters

number: Specifies the maximum number of ECMP routes, in the range of 1 to 8. Load balancing is not implemented when the value is set to 1.

Examples

# Specify the maximum number of ECMP routes as 2.

<Sysname> system-view

[Sysname] rip

[Sysname-rip-1] maximum load-balancing 2

network

Use network to enable RIP on an interface attached to a specified network.

Use undo network to disable RIP on an interface attached to a specified network.

Syntax

network network-address [ wildcard-mask ]

undo network network-address

Default

RIP is disabled on an interface.

Views

RIP view

Predefined user roles

network-admin

Parameters

network-address: Specifies a subnet address where an interface resides.

wildcard-mask: Specifies an IP address wildcard mask. A wildcard mask can be thought of as a subnet mask, with 1s and 0s inverted. For example, a wildcard mask of 255.255.255.0 corresponds to a subnet mask of 0.0.0.255. Without this argument, the command uses the natural mask.

Usage guidelines

RIP runs only on an interface attached to the specified network, which can be configured with a wildcard mask. An interface not on the specified network does not receive or send RIP routes, or advertise its direct routes.

For a single RIP process, the network 0.0.0.0 command can enable RIP on all interfaces. If multiple RIP processes exist, the command is not applicable.

If a physical interface is attached to multiple networks, you cannot advertise these networks in different RIP processes.

Examples

# Enable RIP process 100 on the interface attached to the network 129.102.0.0.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] network 129.102.0.0

Related commands

rip enable

output-delay

Use output-delay to configure the rate at which an interface sends RIP packets.

Use undo output-delay to restore the default.

Syntax

output-delay time count count

undo output-delay

Default

An interface sends up to three RIP packets every 20 milliseconds.

Views

RIP view

Predefined user roles

network-admin

Parameters

time: Specifies the sending interval in the range of 10 to 100 milliseconds.

count: Specifies the maximum number of RIP packets sent at each interval, in the range of 1 to 30.

Examples

# Configure all interfaces running RIP process 1 to send up to 10 RIP packets every 60 milliseconds.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] output-delay 60 count 10

peer

Use peer to specify a RIP neighbor in the NBMA network, where routing updates destined for the neighbor are only unicasts and not multicast or broadcast.

Use undo peer to remove a RIP neighbor.

Syntax

peer ip-address

undo peer ip-address

Default

RIP does not unicast updates to any neighbor.

Views

RIP view

Predefined user roles

network-admin

Parameters

ip-address: Specifies the IP address of a RIP neighbor, in dotted decimal notation.

Usage guidelines

Do not use the peer ip-address command when the neighbor is directly connected. Otherwise, the neighbor might receive both unicast and multicast (or broadcast) messages with the same routing information.

This command must be executed together with the undo validate-source-address command, which disables source IP address check on inbound RIP routing updates.

Examples

# Configure RIP to unicast updates to peer 202.38.165.1.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] peer 202.38.165.1

Related commands

validate-source-address

preference

Use preference to specify a preference for RIP routes.

Use undo preference to restore the default.

Syntax

preference value

undo preference

Default

The preference of RIP routes is 100.

Views

RIP view

Predefined user roles

network-admin

Parameters

value: Specifies a preference for RIP routes, in the range of 1 to 255. The smaller the value, the higher the preference.

Examples

# Set a preference of 120 for RIP routes.

<Sysname> system-view

[Sysname] rip 1

[Sysname-rip-1] preference 120

reset rip process

Use reset rip process to reset a RIP process.

Syntax

reset rip process-id process

Views

User view

Predefined user roles

network-admin

Parameters

process-id: Specifies a RIP process by its ID in the range of 1 to 65535.

Usage guidelines

After executing the command, you are prompted to confirm the operation.

Examples

# Reset RIP process 100.

<Sysname> reset rip 100 process

Reset RIP process? [Y/N]:y

reset rip statistics

Use reset rip statistics to clear statistics for a RIP process.

Syntax

reset rip process-id statistics

Views

User view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies a RIP process by its ID in the range of 1 to 65535.

Examples

# Clear statistics for RIP process 100.

<Sysname> reset rip 100 statistics

rip

Use rip to enable RIP and enter RIP view.

Use undo rip to disable RIP.

Syntax

rip [ process-id ] [ vpn-instance vpn-instance-name ]

undo rip [ process-id ]

Default

RIP is disabled.

Views

System view

Predefined user roles

network-admin

Parameters

process-id: Specifies a RIP process by its ID in the range of 1 to 65535. The default is 1.

vpn-instance vpn-instance-name: Specifies a VPN instance by its name, a case-sensitive string of 1 to 31 characters. If no VPN is specified, the RIP process runs on the public network.

Usage guidelines

You must enable a RIP process before configuring global parameters for it. This restriction does not apply to configuring interface parameters.

If you disable a RIP process, the configured interface parameters become invalid.

Examples

# Enable RIP process 1 and enter RIP view.

<Sysname> system-view

[Sysname] rip

[Sysname-rip-1]

rip authentication-mode

Use rip authentication-mode to configure RIPv2 authentication.

Use undo rip authentication-mode to cancel RIPv2 authentication.

Syntax

rip authentication-mode { md5 { rfc2082 { cipher cipher-string | plain plain-string } key-id | rfc2453 { cipher cipher-string | plain plain-string } } | simple { cipher cipher-string | plain plain-string } }

undo rip authentication-mode

Default

RIPv2 authentication is not configured.

Views

Interface view

Predefined user roles

network-admin

Parameters

md5: Specifies the MD5 authentication.

rfc2082: Uses the message format defined in RFC 2082.

cipher: Sets a ciphertext key.

cipher-string: Specifies a ciphertext key, a case-sensitive string of 33 to 53 characters.

plain: Sets a plaintext key.

plain-string: Specifies a plaintext key, a case-sensitive string of 1 to 16 characters.

key-id: Specifies the RFC 2082 MD5 key ID in the range of 1 to 255.

rfc2453: Uses the message format defined in RFC 2453 (IETF standard).

simple: Specifies the simple authentication mode.

Usage guidelines

A newly configured key overwrites the old one, if any.

Although you can specify an authentication mode for RIPv1 in interface view, the configuration does not take effect because RIPv1 does not support authentication.

For security purposes, all keys, including keys configured in plain text, are saved in cipher text.

Examples

# Configure MD5 authentication on VLAN-interface 10 and specify a plaintext key rose in the format defined in RFC 2453.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip version 2

[Sysname-Vlan-interface10] rip authentication-mode md5 rfc2453 plain rose

Related commands

rip version

rip bfd enable

Use rip bfd enable to enable BFD for RIP on an interface.

Use undo rip bfd enable to restore the default.

Syntax

rip bfd enable

undo rip bfd enable

Default

BFD for RIP is disabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

RIP supports BFD echo-mode detection for a directly connected neighbor, and BFD control-mode detection for an indirectly neighbor.

BFD echo-mode detection only applies to a RIP neighbor one hop away.

Using the undo peer command does not delete the neighbor relationship immediately and cannot bring down the BFD session immediately.

The rip bfd enable command and the rip bfd enable destination command are mutually exclusive and cannot be configured on a device at the same time.

Examples

# Enable BFD for RIP on VLAN-interface 11.

<Sysname> system-view

[Sysname] interface vlan-interface 11

[Sysname-Vlan-interface11] rip bfd enable

rip bfd enable destination

Use rip bfd enable destination to enable BFD single-hop echo detection for a specific destination.

Use undo rip bfd enable to disable BFD for RIP.

Syntax

rip bfd enable destination ip-address

undo rip bfd enable

Default

BFD single-hop echo detection for a specific destination is disabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

The rip bfd enable destination command applies only to BFD echo-mode detection.

The rip bfd enable destination command and the rip bfd enable command are mutually exclusive and cannot be configured on a device at the same time.

When a link failure occurs between the local device and the specified neighbor, BFD can detect the failure. The local device will not receive or send any RIP packets through the interface connected to the neighbor.

Examples

# Enable BFD on VLAN-interface 10 for a specific destination 202.38.165.1.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip bfd enable destination 202.38.165.1

rip default-route

Use rip default-route to configure a RIP interface to advertise a default route with a specified metric.

Use undo rip default-route to disable a RIP interface from sending a default route.

Syntax

rip default-route { { only | originate } [ cost cost ] | no-originate }

undo rip default-route

Default

A RIP interface advertises a default route if the RIP process that the interface runs is enabled to advertise a default route.

Views

Interface view

Predefined user roles

network-admin

Parameters

only: Advertises only a default route.

originate: Advertises both a default route and other routes.

cost: Specifies a cost for the default route, in the range of 1 to 15. The default is 1.

no-originate: Advertises only non-default routes.

Usage guidelines

An interface that is enabled to advertise a default route does not receive any default route from RIP neighbors.

Examples

# Configure VLAN-interface 10 to advertise only a default route with a metric of 2.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip default-route only cost 2

# Configure VLAN-interface 10 to advertise a default route with a metric of 2 and other routes.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip default-route originate cost 2

Related commands

default-route

rip enable

Use rip enable to enable RIP on an interface.

Use undo rip enable to disable RIP on an interface.

Syntax

rip process-id enable [ exclude-subip ]

undo rip enable

Default

RIP is disabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Parameters

process-id: Specifies a RIP process by its ID in the range of 1 to 65535.

exclude-subip: Excludes secondary IP addresses from being enabled with RIP. Without this keyword, RIP is also enabled on secondary IP addresses of a RIP-enabled interface.

Usage guidelines

The rip enable command has a higher priority than the network command.

Examples

# Enable RIP process 100 on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip 100 enable

Related commands

network

rip input

Use rip input to enable an interface to receive RIP messages.

Use undo rip input to disable an interface from receiving RIP messages.

Syntax

rip input

undo rip input

Default

An interface is enabled to receive RIP messages.

Views

Interface view

Predefined user roles

network-admin

Examples

# Disable VLAN-interface 10 from receiving RIP messages.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] undo rip input

rip max-packet-length

Use rip max-packet-length to set the maximum length of RIP packets.

Use undo rip max-packet-length to restore the default.

Syntax

rip max-packet-length value

undo rip max-packet-length

Default

The maximum length of RIP packets is 512 bytes.

Views

Interface view

Predefined user roles

network-admin

Parameters

value: Sets the maximum length of RIP packets, in the range of 32 to 65535 bytes.

Usage guidelines

If the configured value in the rip max-packet-length command is greater than the MTU of an interface, the interface MTU value is used as the maximum length of RIP packets.

The supported maximum length of RIP packets varies by vendor. Use this feature with caution to avoid compatibility issues.

When authentication is enabled, follow these guidelines to ensure packet forwarding:

· For simple authentication, the maximum length of RIP packets must be no less than 52 bytes.

· For MD5 authentication (with packet format defined in RFC 2453), the maximum length of RIP packets must be no less than 56 bytes.

· For MD5 authentication (with packet format defined in RFC 2082), the maximum length of RIP packets must be no less than 72 bytes.

Examples

# Set the maximum length of RIP packets on VLAN-interface 10 to 1024 bytes.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip max-packet-length 1024

rip metricin

Use rip metricin to configure an interface to add a metric to inbound routes.

Use undo rip metricin to restore the default.

Syntax

rip metricin value

undo rip metricin

Default

The additional metric of an inbound route is 0.

Views

Interface view

Predefined user roles

network-admin

Parameters

value: Adds an additional metric to inbound routes, in the range of 0 to 16.

Usage guidelines

When a valid RIP route is received, the system adds a metric to it and then installs it into the routing table. The metric of the route received on the configured interface is then increased. If the sum of the additional metric and the original metric is greater than 16, the metric of the route will be 16.

Examples

# Configure VLAN-interface 10 to add a metric of 2 to inbound routes.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip metricin route-policy abc 2

rip metricout

Use rip metricout to configure an interface to add a metric to outbound routes.

Use undo rip metricout to restore the default.

Syntax

rip metricout value

undo rip metricout

Default

The additional metric for outbound routes is 1.

Views

Interface view

Predefined user roles

network-admin

Parameters

value: Adds an additional metric to outbound routes, in the range of 1 to 16.

Usage guidelines

With the command configured on an interface, the metric of RIP routes sent on the interface will be increased.

Examples

# Configure VLAN-interface 10 to add a metric of 2 to outbound routes.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip metricout route-policy abc 2

rip mib-binding

Use rip mib-binding to bind a RIP process to MIB operation.

Use undo rip mib-binding to restore the default.

Syntax

rip mib-binding process-id

undo rip mib-binding

Default

MIB operation is bound to the RIP process with the smallest process ID.

Views

System view

Predefined user roles

network-admin

Parameters

process-id: Specifies a RIP process by its ID in the range of 1 to 65535.

Usage guidelines

If the specified process ID does not exist, the MIB binding configuration fails.

Deleting a RIP process bound to MIB operation deletes the MIB binding configuration. After the RIP process is deleted, MIB operation is bound to the RIP process with the smallest process ID.

Examples

# Bind MIB operation to RIP process 100.

<Sysname> system-view

[Sysname] rip mib-binding 100

rip output

Use rip output to enable an interface to send RIP messages.

Use undo rip output to disable an interface from sending RIP messages.

Syntax

rip output

undo rip output

Default

An interface sends RIP messages.

Views

Interface view

Predefined user roles

network-admin

Examples

# Disable VLAN-interface 10 from sending RIP messages.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] undo rip output

rip poison-reverse

Use rip poison-reverse to enable the poison reverse function.

Use undo rip poison-reverse to disable the poison reverse function.

Syntax

rip poison-reverse

undo rip poison-reverse

Default

The poison reverse function is disabled.

Views

Interface view

Predefined user roles

network-admin

Examples

# Enable the poison reverse function on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip poison-reverse

rip split-horizon

Use rip split-horizon to enable the split horizon function.

Use undo rip split-horizon to disable the split horizon function.

Syntax

rip split-horizon

undo rip split-horizon

Default

The split horizon function is enabled.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

· The split horizon function prevents routing loops. If you want to disable the function, make sure the operation is necessary.

· If both split horizon and poison reverse are enabled, only the poison reverse function takes effect.

Examples

# Enable the split horizon function on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip split-horizon

rip summary-address

Use rip summary-address to configure RIPv2 to advertise a summary route on an interface.

Use undo rip summary-address to remove the configuration.

Syntax

rip summary-address ip-address { mask-length | mask }

undo rip summary-address ip-address { mask-length | mask }

Default

RIPv2 does not advertise a summary route.

Views

Interface view

Predefined user roles

network-admin

Parameters

ip-address: Specifies the destination IP address of the summary route.

mask-length: Specifies the subnet mask length of the summary route, in the range of 0 to 32.

mask: Specifies the subnet mask of the summary route, in dotted decimal notation.

Usage guidelines

This command takes effect only when automatic route summarization is disabled.

Examples

# Advertise a summary route on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip summary-address 10.0.0.0 255.255.255.0

Related commands

summary

rip version

Use rip version to specify a RIP version on an interface.

Use undo rip version to restore the default.

Syntax

rip version { 1 | 2 [ broadcast | multicast ] }

undo rip version

Default

No RIP version is configured on an interface. The interface can send RIPv1 broadcasts, and receive RIPv1 broadcasts and unicasts, and RIPv2 broadcasts, multicasts, and unicasts.

Views

Interface view

Predefined user roles

network-admin

Parameters

1: Specifies the RIP version as RIPv1.

2: Specifies the RIP version as RIPv2.

[ broadcast | multicast ]: Sends RIPv2 messages in broadcast mode or multicast mode (default).

Usage guidelines

If an interface has no RIP version configured, it uses the global RIP version. Otherwise, it uses the RIP version configured on it.

An interface running RIPv1 can perform the following operations:

· Sends RIPv1 broadcast messages.

· Receives RIPv1 broadcast and unicast messages.

An interface running RIPv2 in broadcast mode can perform the following operations:

· Sends RIPv2 broadcast messages.

· Receives RIPv1 broadcast and unicast messages, and RIPv2 broadcast, multicast, and unicast messages.

An interface running RIPv2 in multicast mode can perform the following operations:

· Sends RIPv2 multicast messages.

· Receives RIPv2 broadcast, multicast, and unicast messages.

Examples

# Configure RIPv2 in broadcast mode on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] rip version 2 broadcast

Related commands

version

silent-interface

Use silent-interface to disable an interface from sending RIP messages. The interface can still receive RIP messages.

Use undo silent-interface to restore the default.

Syntax

silent-interface { interface-type interface-number | all }

undo silent-interface { interface-type interface-number | all }

Default

All RIP interfaces can send RIP messages.

Views

RIP view

Predefined user roles

network-admin

Parameters

interface-type interface-number: Disables a specified interface from sending RIP messages.

all: Disables all interfaces from sending RIP messages.

Examples

# Configure all VLAN interfaces to operate in silent mode except VLAN-interface 10.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] silent-interface all

[Sysname-rip-100] undo silent-interface vlan-interface 10

[Sysname-rip-100] network 131.108.0.0

summary

Use summary to enable automatic RIPv2 route summarization. Natural masks are used to advertise summary routes to reduce the size of routing tables.

Use undo summary to disable automatic RIPv2 route summarization to advertise all subnet routes.

Syntax

summary

undo summary

Default

Automatic RIPv2 route summarization is enabled.

Views

RIP view

Predefined user roles

network-admin

Usage guidelines

Automatic RIPv2 route summarization can reduce the routing table size to enhance the scalability and efficiency for large networks.

Examples

# Disable automatic RIPv2 route summarization.

<Sysname> system-view

[Sysname] rip

[Sysname-rip-1] undo summary

Related commands

· rip summary-address

· rip version

timers

Use timers to configure RIP timers.

Use undo timers to restore the default.

Syntax

timers { garbage-collect garbage-collect-value | suppress suppress-value | timeout timeout-value | update update-value } *

undo timers { garbage-collect | suppress | timeout | update } *

Default

The garbage-collect timer is 120 seconds, the suppress timer is 120 seconds, the timeout timer is 180 seconds, and the update timer is 30 seconds.

Views

RIP view

Predefined user roles

network-admin

Parameters

garbage-collect-value: Specifies the garbage-collect timer in the range of 1 to 3600 seconds.

suppress-value: Specifies the suppress timer in the range of 0 to 3600 seconds.

timeout-value: Specifies the timeout timer in the range of 1 to 3600 seconds.

update-value: Specifies the update timer in the range of 1 to 3600 seconds.

Usage guidelines

RIP uses the following timers:

· Update timer—Specifies the interval between routing updates.

· Timeout timer—Specifies the route aging time. If no update for a route is received before the timer expires, RIP sets the metric of the route to 16.

· Suppress timer—Specifies how long a RIP route stays in suppressed state. When the metric of a route becomes 16, the route enters the suppressed state. If RIP receives an update for the route with a metric less than 16 from the same neighbor, RIP uses this route to replace the suppressed route.

· Garbage-collect timer—Specifies the interval from when the metric of a route becomes 16 to when it is deleted from the routing table. During the garbage-collect timer length, RIP advertises the route with a metric of 16. If no update is announced for that route before the garbage-collect timer expires, RIP deletes the route from the routing table.

As a best practice, do not change the default values of these timers.

The timer lengths must be consistent on all routers on the network.

The timeout timer must be greater than the update timer.

Examples

# Configure the update, timeout, suppress, and garbage-collect timers as 5, 15, 15, and 30 seconds.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] timers update 5 timeout 15 suppress 15 garbage-collect 30

validate-source-address

Use validate-source-address to enable source IP address check on inbound RIP routing updates.

Use undo validate-source-address to disable source IP address check.

Syntax

validate-source-address

undo validate-source-address

Default

Source IP address check on inbound RIP routing updates is enabled.

Views

RIP view

Predefined user roles

network-admin

Examples

# Disable source IP address check on inbound RIP routing updates.

<Sysname> system-view

[Sysname-rip] rip 100

[Sysname-rip-100] undo validate-source-address

version

Use version to specify a global RIP version.

Use undo version to restore the default.

Syntax

version { 1 | 2 }

undo version

Default

No global RIP version is configured. An RIP interface can send RIPv1 broadcasts and receive RIPv1 broadcasts and unicasts, and RIPv2 broadcasts, multicasts, and unicasts.

Views

RIP view

Predefined user roles

network-admin

Parameters

1: Specifies the RIP version as RIPv1.

2: Specifies the RIP version as RIPv2. RIPv2 messages are multicast.

Usage guidelines

An interface prefers the RIP version configured on it over the global RIP version. If no RIP version is specified for the interface and the global version is RIPv1, the interface uses RIPv1. It can send RIPv1 broadcasts and receive RIPv1 broadcasts and unicasts. If no RIP version is specified for the interface and the global version is RIPv2, the interface uses RIPv2 multicast mode. It can send RIPv2 multicasts, and receive RIPv2 broadcasts, multicasts, and unicasts.

Examples

# Specify the global RIP version as RIPv2.

<Sysname> system-view

[Sysname] rip 100

[Sysname-rip-100] version 2

Related commands

rip version

05-Layer 3—IP Routing Command Reference

checkzero

filter-policy export

peer

rip authentication-mode

rip version

silent-interface

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