R3721-F3210-F3171-HP High-End Firewalls High Availability Configuration Guide-6PW101
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NOTE:
• You can create up to 16 VRRP groups on an interface and up to 16 virtual IP addresses in a VRRP
g
roup.
• When a router is the IP address owner in a VRRP group, HP recommends you not to use the IP address
of the interface (virtual IP address of the VRRP group) to establish a neighbor relationship with the
adjacent router, that is, not to use the network command to enable OSPF on the interface.
• A VRRP group is removed after you remove all the virtual IP addresses configured for it. In addition,
configurations on that VRRP group do not take effect any longer.
• Removal of the VRRP group on the IP address owner causes IP address collision. To solve the collision,
modify the IP address of the interface on the IP address owner first and then remove the VRRP group
from the interface.
• The virtual IP address of a VRRP group cannot be 0.0.0.0, 255.255.255.255, loopback addresses, non
class A/B/C addresses or other illegal IP addresses such as 0.0.0.1.
• A VRRP group operates properly only when the configured virtual IP address and the interface IP
address belon
g
to the same se
g
ment and are le
g
al host addresses. If the confi
g
ured virtual IP address
and the interface IP address do not belon
g
to the same network se
g
ment, or the confi
g
ured IP address
is the network address or network broadcast address of the network segment to which the interface IP
address belongs, the state of the VRRP group is always initialize though you can perform the
configuration successfully. In this case, VRRP does not take effect.
Configuring router priority, preemptive mode and tracking function
Before you configure router priority, preemptive mode and tracking function, create a VRRP group on an
interface and configure a virtual IP address for it.
By configuring router priority, preemptive mode, interface tracking, or a track entry, you can determine
which router in the VRRP group serves as the master.
To configure router priority, preemptive mode and the tracking function:
:
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Configure router priority in the
VRRP group.
vrrp vrid virtual-router-id priority
priority-value
Optional.
100 by default.
4. Configure the router in the
VRRP group to operate in
preemptive mode and
configure preemption delay.
vrrp vrid virtual-router-id
preempt-mode [ timer delay
delay-value ]
Optional.
The router in the VRRP group
operates in preemptive mode and
the preemption delay is 0 seconds
by default.
5. Configure the interface to be
tracked.
vrrp vrid virtual-router-id track
interface interface-type
interface-number [ reduced
priority-reduced ]
Optional.
No interface is being tracked by
default.
6. Configure VRRP to track a
specified track entry.
vrrp vrid virtual-router-id track
track-entry-number [ reduced
priority-reduced | switchover ]
Optional.
Not configured by default.