On Mon, 8 Jul 2002 08:43:34 -0400 Hagop Karaoghlanian <hkaraoghlanian@corp.attcanada.ca> wrote:
> Hi All,
>
> Is it possible to have multiple standby IP's with two routers in one
> group?
>
> I have three different subnets in my LAN, a /29 and two /27's. I have a
> 2611 with dual T1, and another 2611 with a single T1. I need both of
> them
> passing traffic at the same time, I cannot have one of them dormant.
> But at
> the same time, they would both have to back each other up. Why both of
> them
> passing traffic? becuase dual T1 router has the 2 /27's on it, which is
> mostly internet traffic. The other router has the /29 on it used for
> VPN-ing and mail services.
Yes, have a look for MHSRP on CCO. (Multigroup HSRP)
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ics/cs009.htm#xtocid122333
You can configure multiple groups with different standby IPs but the same
members, like this:(Apologies if I g et this wrong, I'm typing from memory
and not cut'n'pasting)
Router 1
--------
int FastEthernet0/0
ip address 10.1.1.3 255.255.255.0
standby 1 ip 10.1.1.1
standby 1 priority 100 preempt
standby 2 ip 10.1.1.2
standby 2 priority 50 preempt
Router 2
--------
int FastEthernet0/0
ip address 10.1.1.4 255.255.255.0
standby 1 ip 10.1.1.1
standby 1 priority 50 preempt
standby 2 ip 10.1.1.2
standby 2 priority 100 preempt
You then need to somehow ensure that different workstations on the network
use different default gateways.
In your situation, it's worth using standby track to peanalise any router
whose serial interfaces have gone down so all traffic automatically goes to
the working router.
--
Ryan O'Connell - CCIE #8174
<ryan@complicity.co.uk> - http://www.complicity.co.uk
I'm not losing my mind, no I'm not changing my lines,
I'm just learning new things with the passage of time
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