First big question, are your T1's from the same provider, or from a different provider, and thus different "public" ip address space? If it is from a different provider, you may well run into some problems with NAT.
Say for example, client A connects to your webserver (via ISP A's public IP address that is assigned to you, say x.x.x.x) which is then Nat'd to your internal RFC1918 address That will work all fine and dandy, but what about if your default gateway is ISP B's T1. Outbound packets, returning to Client A, will be NAT'd to ISB B's outside address, say y.y.y.y. If Client A is behind a stateful firewall, return packets will be dropped, as it will have ISP B's SRC address, and it will be expecting ISP A's. There are a number of ways around this, but I will wait for more detauls before going on. Presumably you are not / will not be running BGP, and have your own AS? Terry Oldham wrote: > > Hello all, > > I am attempting to setup a Cisco 1721 Router with load > balancing and > NAT so that we can provide a dual T1 connection to the network. > This is the > first time I have done anything like this and I was wanting to > know if > anyone had any good pointers they could give me or any commands > that I > should beware of or add. > > Thanks, > > Terry O > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=64906&t=64904 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
