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From: solo.entity on 15 Apr 2008 13:20
Hello to all!

I have the following problem: I have two Internet connections, one is
just for backup and the other one is active. I want when the active
one goes "down", the other one to kick in. I thought of HSRP or VRRP
but this won`t solve my problem because the link never goes down ...
sometimes the ISP network goes down somewhere and only the ISP network
is available. I can implement a solution on a variety of routers / PIX
firewalls / servers.

Do you have any solutions that you think might work or are you
currently using one successfully ?
Please let me know

--
Andrew S.
From: Bod43 on 15 Apr 2008 13:39
On 15 Apr, 19:20, solo.ent...(a)gmail.com wrote:
> Hello to all!
>
> I have the following problem: I have two Internet connections, one is
> just for backup and the other one is active. I want when the active
> one goes "down", the other one to kick in. I thought of HSRP or VRRP
> but this won`t solve my problem because the link never goes down ...
> sometimes the ISP network goes down somewhere and only the ISP network
> is available. I can implement a solution on a variety of routers / PIX
> firewalls / servers.
>
> Do you have any solutions that you think might work or are you
> currently using one successfully ?
> Please let me know

Look at SAA Policy based routing.
I think that Cisco have changed the name of it (again?).
Someone will be along in a minute with the new name.

This lets you ping something and do routing depending on
the results.

I think you can also influence HSRP priorities
based on ping or other probe results.

This will fix outbound traffic if you are doing NAT.





From: Bod43 on 15 Apr 2008 13:41
On 15 Apr, 19:39, Bo...(a)hotmail.co.uk wrote:
> On 15 Apr, 19:20, solo.ent...(a)gmail.com wrote:
>
> > Hello to all!
>
> > I have the following problem: I have two Internet connections, one is
> > just for backup and the other one is active. I want when the active
> > one goes "down", the other one to kick in. I thought of HSRP or VRRP
> > but this won`t solve my problem because the link never goes down ...
> > sometimes the ISP network goes down somewhere and only the ISP network
> > is available. I can implement a solution on a variety of routers / PIX
> > firewalls / servers.
>
> > Do you have any solutions that you think might work or are you
> > currently using one successfully ?
> > Please let me know
>
> Look at SAA Policy based routing.
> I think that Cisco have changed the name of it (again?).
> Someone will be along in a minute with the new name.
>
> This lets you ping something and do routing depending on
> the results.
>
> I think you can also influence HSRP priorities
> based on ping or other probe results.
>
> This will fix outbound traffic if you are doing NAT.

http://www.cisco.com/en/US/tech/tk364/technologies_configuration_example09186a0080211f5c.shtml

http://www.cisco.com/en/US/docs/ios/12_4/ip_route/configuration/guide/h_pbrtrk.html
PBR Support for Multiple Tracking Options
From: travisnathanwright on 15 Apr 2008 13:53
On Apr 15, 1:20 pm, solo.ent...(a)gmail.com wrote:
> Hello to all!
>
> I have the following problem: I have two Internet connections, one is
> just for backup and the other one is active. I want when the active
> one goes "down", the other one to kick in. I thought of HSRP or VRRP
> but this won`t solve my problem because the link never goes down ...
> sometimes the ISP network goes down somewhere and only the ISP network
> is available. I can implement a solution on a variety of routers / PIX
> firewalls / servers.
>
> Do you have any solutions that you think might work or are you
> currently using one successfully ?
> Please let me know
>
> --
> Andrew S.

You should be able to use EIGRP or BGP but you would have to
coordinate your config with your provider(s). Not sure if they would
charge extra for this... If you have static routing and have your
hands on a Sidewinder firewall you can now configure default route
failover..
From: Merv on 15 Apr 2008 14:00

google for "Reliable Static Routing Backup Using Object Tracking"

http://www.cisco.com/en/US/docs/ios/12_3/12_3x/12_3xe/feature/guide/dbackupx.html

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