On Friday 16 November 2007 15:11, Ben wrote: > currently running IOS version 11.0. > The fact is that I wanted to do NAT with it but it seems > that the first image of IOS able to do NAT is the 12.0.
Not quite. The oldest image that supports NAT on the 2500 Cisco series routers is IOS 11.2. > I have 3 questions for you guys : > Pb 0 : Is it worst working on a old box like this ? Depends on the amount of traffic you are looking to push. The 2500 is an old box, and NAT is both CPU and memory intensive. > Pb 1 : How do I know if my particular router can support > the IOS 12.0version and how can I get the right image ? You need to have a CCO account with Cisco or ask the mailing lists, like you've just done. > Pb 2 : If not, does a memory upgrade can help ? (I think > maximum is 16Mb ...) IOS 11.2(26g) is the latest stable release for the 2500 that supports NAT. It requires 4MB of RAM and 8MB of flash. A jump to 16MB would help maintain more state information, but not necessarily make the box run faster. Hope this helps. Cheers, Mark.
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