CONFIGURING VIRTUAL ROUTER REDUNDANCY PROTOCOL BACKUP GROUP

摘要

According to an example, when a member device is in a Master state in a VRRP backup group, after snooping a first DHCP packet sent from a DHCP client to a DHCP server, the member device determines an interface receiving the first DHCP packet as an interface of the DHCP client; after snooping a second DHCP packet sent from the DHCP server to a DHCP client, the member device obtains a default gateway address and a subnet mask of the DHCP client from the second DHCP packet; after obtaining the default gateway address and the subnet mask, if the interface of the DHCP client is not configured with a virtual IP address and a network segment route, the member device respectively configures the default gateway address and the subnet mask as the virtual IP address and the network segment route on the interface of the DHCP client.

主权项

1. A method for configuring a Virtual Router Redundancy Protocol (VRRP) backup group, when a member device is in a Master state in a VRRP backup group, comprising:
after snooping a first Dynamic Host Configuration Protocol (DHCP) packet sent from a DHCP client to a DHCP server, determining, by the member device in the Master state, an interface receiving the first DHCP packet as an interface of the DHCP client; after snooping a second DHCP packet sent from the DHCP server to a DHCP client, obtaining, by the member device in the Master state, a default gateway address and a subnet mask of the DHCP client from the second DHCP packet; and after obtaining the default gateway address and the subnet mask of the DHCP client, if it is determined that the interface of the DHCP client is not configured with a virtual IP address and a network segment route, respectively configuring, by the member device in the Master state, the default gateway address and the subnet mask as the virtual IP address and the network segment route on the interface of the DHCP client.