HP 4800G Series Configuration Manual page 1453

Type: Type of the VRRP packet. Only one VRRP packet type is present, that is, VRRP
advertisement, which is represented by 1.
Virtual Rtr ID (VRID): Serial number of the virtual router, that is, serial number of the VRRP group.
It ranges from 1 to 255.
Priority: Priority of the router in the VRRP group, in the range 0 to 255. A greater value represents
a higher priority.
Count IP Addrs: Number of virtual IP addresses for the VRRP group. A VRRP group can have
multiple virtual IP addresses.
Auth Type: Authentication type. 0 means no authentication, 1 means simple text authentication,
and 2 means MD5 authentication.
Adver Int: Interval for sending advertisement packets, in seconds. The default is 1.
Checksum: 16-bit checksum for validating the data in VRRP packets.
IP Address: Virtual IP address entry of the VRRP group. The Count IP Addrs field defines the
number of the virtual IP addresses.
Authentication Data: Authentication key. Currently, this field is used only for simple authentication
and is 0 for any other authentication modes.
IPv6-based VRRP packet format
Figure 1-4 Format of IPv6-based VRRP packet
0 3 7
Version Type
Auth Type
As shown in Figure 1-4, an IPv6-based VRRP packet consists of the following fields:
Version: Version number of the protocol, 3 for VRRPv3.
Type: Type of the VRRP packet. Only one VRRP packet type is present, that is, VRRP
advertisement, which is represented by 1.
Virtual Rtr ID (VRID): Serial number of the virtual router, that is, serial number of the VRRP group.
It ranges from 1 to 255.
Priority: Priority of the router in the VRRP group, in the range 0 to 255. A greater value represents
a higher priority.
Count IPv6 Addrs: Number of virtual IPv6 addresses for the VRRP group. A VRRP group can have
multiple virtual IPv6 addresses.
15
Virtual Rtr ID
Adver Int
IPv6 address 1
IPv6 address n
Authentication data 1
Authentication data 2
23
Priority Count IPv6 Addrs
Checksum
1-5
31