Login
- Table of Contents
-
- 04-Layer 3—IP Services Command Reference
- 00-Preface
- 01-ARP commands
- 02-IP addressing commands
- 03-DHCP commands
- 04-DNS commands
- 05-IP forwarding basics commands
- 06-Fast forwarding commands
- 07-IRDP commands
- 08-IP performance optimization commands
- 09-UDP Helper commands
- 10-IPv6 basics commands
- 11-DHCPv6 commands
- 12-IPv6 fast forwarding commands
- Related Documents
-
| Title | Size | Download |
|---|---|---|
| 07-IRDP commands | 43.74 KB |
IRDP commands
The term "interface" in this chapter refers to VLAN interfaces.
ip irdp
Use ip irdp to enable IRDP on an interface.
Use undo ip irdp to disable IRDP on an interface.
Syntax
ip irdp
undo ip irdp
Default
IRDP is disabled on an interface.
Views
Interface view
Predefined user roles
network-admin
Usage guidelines
After IRDP is enabled on an interface, the IRDP configuration takes effect, and the device sends RA messages out of the interface.
Examples
# Enable IRDP on VLAN-interface 100.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] ip irdp
ip irdp address
Use ip irdp address to specify an IP address to be proxy-advertised by an interface.
Use undo ip irdp address to remove the proxy-advertised IP address.
Syntax
ip irdp address ip-address preference-value
undo ip irdp address [ ip-address ]
Default
No proxy-advertised IP address is specified.
Views
Interface view
Predefined user roles
network-admin
Parameters
ip-address: Specifies an IP address in dotted decimal notation.
preference-value: Specifies the preference for the proxy-advertised IP address, in the range of –2147483648 to 2147483647.
Usage guidelines
You can specify a maximum of four proxy-advertised IP addresses on an interface. An RA sent on an interface includes the IP addresses of the interface and the proxy-advertised IP addresses.
If you do not specify any IP address for the undo command, the command removes the proxy-advertised IP addresses from all interfaces.
Examples
# Specify the IP address 192.168.0.8 and its preference 1600 for VLAN-interface 100 to proxy-advertise.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] ip irdp address 192.168.0.8 1600
Related commands
ip irdp
ip irdp lifetime
Use ip irdp lifetime to set the lifetime of IP addresses advertised on an interface.
Use undo ip irdp lifetime to restore the default.
Syntax
ip irdp lifetime lifetime-value
undo ip irdp lifetime
Default
The lifetime is 1800 seconds.
Views
Interface view
Predefined user roles
network-admin
Parameters
lifetime-value: Specifies the lifetime in seconds, in the range of 4 to 9000.
Usage guidelines
The lifetime of IP addresses cannot be shorter than the maximum advertising interval on an interface.
The specified lifetime applies to all advertised IP addresses, including the IP addresses of the interface and proxy-advertised IP addresses on the interface.
Examples
# Set the lifetime of IP addresses advertised on VLAN-interface 100 to 2000 seconds.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] ip irdp lifetime 2000
· ip irdp
· ip irdp interval
ip irdp interval
Use ip irdp interval to set the maximum and minimum intervals for advertising RAs on an interface.
Use undo ip irdp interval to restore the default.
Syntax
ip irdp interval max-interval-value [ min-interval-value ]
undo ip irdp interval
Default
The maximum advertising interval is 600 seconds, and the minimum advertising interval is 3/4 of the maximum advertising interval.
Views
Interface view
Predefined user roles
network-admin
Parameters
max-interval-value: Specifies the maximum advertising interval in seconds, in the range of 4 to 1800.
min-interval-value: Specifies the minimum advertising interval in seconds, in the range of 3 to max-interval-value.
Usage guidelines
The device periodically broadcasts or multicasts an RA at a random interval between the maximum and minimum advertising interval.
The maximum advertising interval cannot be longer than the lifetime of advertised IP addresses. Otherwise, the lifetime is automatically adjusted to a value three times the maximum interval.
Examples
# On VLAN-interface 100, set the maximum advertising interval to 500 seconds and the minimum advertising interval to 300 seconds.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] ip irdp interval 500 300
· ip irdp
· ip irdp lifetime
ip irdp multicast
Use ip irdp multicast to specify the multicast address 224.0.0.1 as the destination IP address of RAs sent on an interface.
Use undo ip irdp multicast to restore the default.
Syntax
ip irdp multicast
undo ip irdp multicast
Default
The destination IP address is 255.255.255.255.
Views
Interface view
Predefined user roles
network-admin
Examples
# Specify the multicast address 224.0.0.1 as the destination IP address for VLAN-interface 100 to send RAs.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] ip irdp multicast
Related commands
ip irdp
ip irdp preference
Use ip irdp preference to specify the preference of advertised primary and secondary IP addresses on an interface.
Use undo ip irdp preference to restore the default.
Syntax
ip irdp preference preference-value
undo ip irdp preference
Default
The preference of advertised IP addresses is 0.
Views
Interface view
Predefined user roles
network-admin
Parameters
preference-value: Specifies the preference in the range of –2147483648 to 2147483647. A larger value represents a higher preference. To request neighboring hosts to not use any advertised IP address as the default gateway, set the value to the minimum value (–2147483648).
Examples
# Specify preference 1 for IP addresses advertised on VLAN-interface 100.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] ip irdp preference 1
Related commands
ip irdp
