User`s guide

100 XSR User’s Guide
Configuring VRRP Example Chapter 5
Configuring IP
the inside local address 10.1.1.1 and destination port 1789, then
forwards it to 10.1.1.1.
Configuring NAPT
The following steps are required to configure overloading of inside global
addresses. The example configures an access list to permit specified
traffic but is optional. All other traffic is implicitly denied.
XSR(config)#interface serial 1/0
+ Configures serial port and acquires Interface mode
XSR(config-if<S1/0>)#ip nat source list 99 assigned overload
+ Specifies NAT translation rules on the interface
XSR(config)#access-list 99 permit ip 10.1.1.0 0.0.0.255
+ Adds ACL to permit IP traffic from the specified source
Configuring VRRP Example
The following example configures three VRRP groups to provide
forwarding redundancy and load balancing on VRRP routers XSRa and
XSRb as follows:
 Group 1: the virtual IP address is 10.10.10.10, XSRa is the group
master with priority 120, the advertising interval is 3 seconds,
preemption is enabled with a 2-second delay, and authentication is
set with the text robo.
 Group 5: XSRb is the group master with priority 200, the virtual IP
address is 10.10.10.50, the advertising interval is 30 seconds, and
preemption is enabled with a 2-second delay.
 Group 100: XSRa is the group master with priority 85, the advertising
interval is 1 second (default), and preemption is off.
 The WAN Serial interface 2/0 is tracked by FastEthernet interface 1
on each likely master VR.
Router XSRa
XSRa(config)#interface fastethernet 1/0
XSRa(config-if<F1>)#ip address 10.10.10.2 255.255.255.0
XSRa(config-if<F1>)#vrrp 1 priority 150
XSRa(config-if<F1>)#vrrp 1 preempt delay 2