Some confusion in hsrp

[prashantrecon]

on router A

int fa0/1

ip address 10.1.1.2 255.255.255.0

no shutdown

int s0/1

ip address 1.1.1.1 255.0.0.0

no shutdown

standby 1 ip 10.1.1.1 255.0.0.0

standby 1 prempt

standy 1 priority 150

Bgp is also configured with its peer

on router B

int fa0/1

ip address 10.1.1.2 255.0.0.0

no shutdown

int s0/1

ip adress 2.1.1.1 255.0.0.0

no shutdown

standby 1 ip 10.1.1.1 255.0.0.0

satndy 1 priority 100

bgp is configured with its peer ip address

Hsrp is working fine now the problem is u can see both router A and B are connected to L2 switch.

And on firewall the default is 0.0.0.0 0.0.0.0 202.x.x.x ip  router c

My requirement is I have vlan  created as 100 on 6500 series switch with ip 172.18.x.x range

172.18.x.x should go through router A ie hsrp.

So what are the changes on L2 and firewall.

On l2 switch  i have vlan 3 all the ports of l2  are in vlan3.

[prashantrecon]

Is this scenario poossible for hrsp

[glen.grant]

  You would need another spare interface on the "A" and B" router  and then create the subnet on each along with the hsrp config like you have for the other subnet .  The only other way is if the L2 switch is a managable switch  like a say a 2960,3560 then you could take the existing setup and create trunks  between your existing routers and the layer 2 switch which would carry both subnets and then plug the 6500 into the existing L2 switch in which you have created vlan 100 and carried that across the trunks.  This scenario still leaves you with a single point of failure though at the L2 switch. The way you have it on your diagram is a single link and there isnt a way to do it that I know with the way you have it on the drawing.