|
|
 FAQ
 Search
 Memberlist
 Usergroups
 Register
 Profile
 Private messages
 Log in
|
|
| Author |
Message |
Guest
|
 Posted: Tue Jul 03, 2007 3:45 am Post subject: Cisco router with multiple paths non BGP & failover mode |
 |
|
I have an odd setup. I have a Cisco router with a T1 connected to it,
and Ethernet 100 doing routing. I've added a 54Mb/s line of site long
haul network extender. This extends my logical network all the way
out to the Cisco router. So now the router has FA1 plugged into this
long haul device with a network on my local LAN. I've setup the VLAN
and routing so that traffic flows from Fast Ethernet 0 to Fast
Ethernet 1 with no metric, and then through the T1 as a higher
metric. I've configured my router at my main facility to route to the
remote logical network via the IP address of the router (on my LAN) at
the remote site.
I can unplug the T1 and verify that traffic is flowing now through the
new long haul device.
The problem is that when I unplug the long haul device at my main LAN,
the routers do not do dead gateway detection and fail over to the T1.
I believe this has something to do with my LAN network actually being
on the remote router on Fast Ethernet 1 and the remote router not
realizing that this link to the LAN network is actually down.
Is there some way to make this fail over work? I'm not thinking of
any solutions.
Thank you;
Edwin. |
|
| Back to top |
|
 |
|
|
stephen
Guest
|
| Posted: Tue Jul 03, 2007 12:56 pm Post subject: Re: Cisco router with multiple paths non BGP & failover mode |
|
|
<edavid3001@gmail.com> wrote in message
news:1183416330.487312.197100@n60g2000hse.googlegroups.com...
| Quote: | I have an odd setup. I have a Cisco router with a T1 connected to it,
and Ethernet 100 doing routing. I've added a 54Mb/s line of site long
haul network extender. This extends my logical network all the way
out to the Cisco router. So now the router has FA1 plugged into this
long haul device with a network on my local LAN. I've setup the VLAN
and routing so that traffic flows from Fast Ethernet 0 to Fast
Ethernet 1 with no metric, and then through the T1 as a higher
metric. I've configured my router at my main facility to route to the
remote logical network via the IP address of the router (on my LAN) at
the remote site.
|
it sounds like you have the WAN link part of the same subnet as the LAN at 1
or both sites?
the "standard" fix for your problem is to arrange the WAN links (ie both the
Ethernet and the T1) to be routed, then let a routing protocol choose which
path to use.
The only simple way out of this which doesnt involve readdressing might be
to use HSRP to find the local default gateway, and share it between the 2
routers?
| Quote: |
I can unplug the T1 and verify that traffic is flowing now through the
new long haul device.
The problem is that when I unplug the long haul device at my main LAN,
the routers do not do dead gateway detection and fail over to the T1.
I believe this has something to do with my LAN network actually being
on the remote router on Fast Ethernet 1 and the remote router not
realizing that this link to the LAN network is actually down.
Is there some way to make this fail over work? I'm not thinking of
any solutions.
Thank you;
Edwin.
-- |
Regards
stephen_hope@xyzworld.com - replace xyz with ntl |
|
| Back to top |
|
|
Guest
|
| Posted: Tue Jul 03, 2007 7:32 pm Post subject: Re: Cisco router with multiple paths non BGP & failover mode |
|
|
Ok, thank you. Either way, my long haul network needs to be a
different network than my LAN & routed. The guy who configured the
long haul is not here, and can't recall the password so I can't re-
configure them.
We're not even sure we are going to keep the T1 as a backup, we just
wanted to have it initially in case the long hauls were not reliable.
I'm not certain it's worth the investment to reconfigure all this.
Thank you
Edwin. |
|
| Back to top |
|
|
|
|
