Cisco GLBP( Gateway Load Balancing Protocol) config sample

Router 1(  R1 ) with WAN connection, Router 2 (R2) with WAN connection also. We want to setup router hardward redundancy and traffic load balancing with weight on the gateway.

Here is the example.

On R1.

track 1 ip route 0.0.0.0 0.0.0.0 reachability

interface FastEthernet0/0

 mac-address aaaa.aaaa.aaaa

 ip address 208.x.x.254 255.255.255.0

 glbp 100 ip 208.x.x.1

 glbp 100 preempt

 glbp 100 load-balancing weighted

 glbp 100 weighting 200

 glbp 100 weighting track 1 decrement 200

On R2.

track 1 ip route 0.0.0.0 0.0.0.0 reachability

interface FastEthernet0/0

 mac-address cccc.cccc.cccc

 ip address 208.x.x.253 255.255.255.0

 glbp 100 ip 208.x.x.1

 glbp 100 priority 90

 glbp 100 preempt

 glbp 100 load-balancing weighted

 glbp 100 weighting track 1 decrement 100