Configuration procedure
Configure Switch A:
# Specify an IP address for VLAN-interface 2.
<SwitchA> system-view [SwitchA] interface vlan-interface 2 [SwitchA-Vlan-interface2] ip address 10.154.5.1 24
# Enable IRDP on VLAN-interface 2.
[SwitchA-Vlan-interface2] ip irdp
# Specify preference 1000 for advertised IP addresses on VLAN-interface 2.
[SwitchA-Vlan-interface2] ip irdp preference 1000
# Specify the multicast address 224.0.0.1 as the destination IP address for RAs sent by VLAN-interface 2.
[SwitchA-Vlan-interface2] ip irdp multicast
# Specify the IP address 192.168.1.0 and preference 400 for VLAN-interface 2 to proxy-advertise.
[SwitchA-Vlan-interface2] ip irdp address 192.168.1.0 400
Configure Switch B:
# Specify an IP address for VLAN-interface 2.
<SwitchB> system-view [SwitchB] interface vlan-interface 2 [SwitchB-Vlan-interface2] ip address 10.154.5.2 24
# Enable IRDP on VLAN-interface 2.
[SwitchB-Vlan-interface2] ip irdp
# Specify preference 500 for advertised IP addresses on VLAN-interface 2.
[SwitchB-Vlan-interface2] ip irdp preference 500
# Specify the multicast address 224.0.0.1 as the destination IP address for RAs sent by VLAN-interface 2.
[SwitchB-Vlan-interface2] ip irdp multicast
# Specify the IP address 192.168.2.0 and preference 400 for VLAN-interface 2 to proxy-advertise.
[SwitchB-Vlan-interface2] ip irdp address 192.168.2.0 400