Vrrp Authentication - Huawei AR530 Series Configuration Manual

Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Reliability
Field
Auth Type
Adver Int/
Max Adver
Int
Checksum
IP Address/
IPvX
Address(es)
Authenticati
on Data
rsvd
VRRPv2 and VRRPv3 have the following differences:
l
l
l

VRRP Authentication

Different authentication modes and authentication keys can be set in VRRPv2 Advertisement
packets:
Issue 01 (2014-11-30)
Description
VRRPv2
Authentication mode. There are three
authentication modes:
l 0: Non Authentication
l 1: Simple Text Password
l 2: IP Authentication Header
(MD5 authentication)
Interval at which VRRP
Advertisement packets are sent, in
seconds. The default value is 1.
16-bit checksum, which is used to
verify data integrity in VRRP
Advertisement packets.
Virtual IPv4 address in the VRRP
group. The Count IP Addrs field
determines the number of virtual
IPv4 addresses in the VRRP group.
Authentication key. This field is used
only in simple authentication and
MD5 authentication modes. In other
authentication modes, this field is
filled with 0s.
-
Apply to different networks. VRRPv3 applies to IPv4 and IPv6 networks, whereas VRRPv2
applies to only IPv4 networks.
Have different authentication functions. VRRPv3 does not support authentication, whereas
VRRPv2 supports authentication.
NOTE
VRRPv2 reserves the authentication field in VRRP Advertisement packets to be compatible with
VRRP defined in RFC 2338. VRRP authentication cannot improve security.
Use different time units to measure the interval at which VRRP Advertisement packets are
sent. VRRPv3 uses centiseconds, whereas VRRPv2 uses seconds.
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6 VRRP Configuration
VRRPv3
-
Interval at which VRRP
Advertisement packets are sent, in
centiseconds. The default value is
100 (1 second).
16-bit checksum, which is used to
verify data integrity in VRRP
Advertisement packets.
Virtual IPv4 or IPv6 address in the
VRRP group. The Count IPvX Addrs
field determines the number of virtual
IPv4 or IPv6 addresses in the VRRP
group.
-
Reserved. This field has a fixed value
of 0.
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