Great, thanks for the options. I'd thought of the /31s before, but figured the only downside to that is having to segment the /24 and losing some IP addresses, but it's only a few...
On 12/17/07, Kevin Graham <[EMAIL PROTECTED]> wrote: > Doing a bridge on the 2851 is an option, but if the 3750's are > part of a single stack, then just use a multi-chassis etherchannel. > > Otherwise, put up /31's between the 3750's and 2851; at that point, > either terminate connectivity on a loopback, or use two tunnels for > each of the ISP's (in separate VRF's on the 2851) and let your IGP > deal with it. > > > ----- Original Message ---- > From: Roy Blamski <[EMAIL PROTECTED]> > To: [email protected] > Sent: Monday, December 17, 2007 10:14:15 AM > Subject: [c-nsp] simple redunancy.. > > > so something like this: > > ISP > /30 /30 > | | > 3750------3750 > | | > ---2851---- > > > all devices are connected via ospf (over an internal network range) > and the links between the 2851 and 3750s are trunked. the ISP is > routing us a /24 > > my dilemma: how to keep a VPN connection up (GRE/IPSEC) that > terminates into the 2851, onto an address in the public /24, when we > lose one of the ISP connections. it seems like i want to bridge > together the public vlan to each 3750...is that doable? there are > other rfc1918 vlans shared between the 3750s and 2851 as well. > > thanks for any help... > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > > > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
