Install guide

Software Release 2.6.4 31
Software Release 2.6.4
C613-10404-00 REV A
■ When changing the configuration of the participating routers using Telnet,
GUI or SNMP, configure each device individually by pointing to their
individual IP addresses.
■ When changing the configuration of the participating routers, do not use
the VR IP address. Only one device, the VR master, is responding to this IP
address, and you may not know which device it is.
Configuration of VR IP Address Adoption
To configure VRRP IP Address Adoption, use the new parameter, adoptvrip,
that has been added to the create vrrp and set vrrp commands:
create vrrp=vr-identifier over=physical-interface
ipaddress=ipadd [adoptvrip={on|off}]
[other-parameters...]
set vrrp=vr-identifier [adoptvrip={on|off}]
[other-parameters]
The adoptvrip parameter specifies that when the switch is acting as the VRRP
master it should respond to requests directed at any IP address that it is
backing up, even if it does not own that address. If it does not own the address
the access requests that the switch will permit are limited to: ICMP echo
requests (pings), Telnet, SSH, HTTP and SSL GUI, SNMP and DNS relay. All
other types of access to the address will be ignored. The default is OFF.
If you set adoptvrip to on, give the VR an IP address that is different from the
interface IP addresses of any of the individual routers in the VR, and only use
the VR IP address to monitor the VR, not to configure any of its participating
routers. Otherwise you risk confusion when you monitor or configure
individual routers. See Synchronising Time Across Stacks on page 9 for more
about risks and recommendations.
Configure all the switches in a virtual router with the same values for the
VRRP virtual router identifier, IP address, adopt VR IP address mode,
advertisement interval, preempt mode, authentication type and password.
Inconsistent configuration will cause advertisement packets to be rejected and
the virtual router will not perform properly.
To display the value of the new parameter, use the show vrrp command.
Table 9: New parameter displayed in the output of the show vrrp command
Parameter Meaning
Adopt VR IP Address(es) Whether or not the switch should respond to ICMP
echo, Telnet, GUI, SNMP and DNS relay service
requests targeted at the VR IP address(es) associated
with the virtual router, even if it does not own those
address(es).