Re: How to find a sick router with 2.6.17+ and tcp_window_scaling enabled

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Willy Tarreau wrote:
On Tue, Aug 15, 2006 at 02:53:33PM -0500, Mark Reidenbach wrote:
Willy Tarreau wrote:
He may very well have an IOS based 1600 or equivalent doing a very dirty NAT.

Willy

Willy, I am in fact running an IOS based NAT/firewall on a 1811. It's IOS version 12.3(8)YI1. Do you know if this version has a "very dirty NAT" implementation? If you don't, I think I'll just try a few spare home routers and see if their NAT implementation is cleaner than my Cisco's.

I have absolutely no idea. If they borrowed the session tracking code from
the PIX, you might have window tracking inside it, which might cause what
you observe if it's buggy. But that's just supposition from me.

Mark Reidenbach
EveryTruckJob.com
[email protected]
Phone: (205)722-9112

Regards,
willy


I'm just posting this as a follow-up in case anyone runs across the same problem I experienced and couldn't find a solution. My problem was the old Cisco IOS [Version 12.3(8)YI1] that came installed on my Cisco 1811 router I purchased in March 2006. I believe this is still the default shipping version for this router, so anyone who buys one really needs to get a Cisco support contract for it from a Cisco reseller so they can download a new/working IOS [Version 12.4(9)T1 was the most recent as of this email and was the one I used]. Mark Reidenbach
EveryTruckJob.com
[email protected]
Phone: (205)722-9112


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