nanog mailing list archives
Re: Seeking Comcast Contact: need to troubleshoot packet loss and/or asymmetric routing issue between Comcast & Onvoy
From: Adrian Chadd <adrian () creative net au>
Date: Fri, 3 Aug 2007 09:09:41 +0800
On Thu, Aug 02, 2007, Jim Shankland wrote:
Linux has a nifty iptables option (clamp-mss-to-pmtu) to rewrite the MSS in TCP SYN packets when forwarding a packet onto a link with a lower MTU than the MSS in the packet. Works like a charm. If every packet forwarding device on the Internet did this, PMTUD would not be needed. As is, PMTUD is simply broken, due to widespread firewall misconfiguration. As in so many other cases of Internet misbehavior, you can avoid being part of the problem, but you can't be the solution.
.. non-TCP traffic? Adrian
Current thread:
- I35 bridge collapse in Minneapolis Sean Donelan (Aug 01)
- Seeking Comcast Contact: need to troubleshoot packet loss and/or asymmetric routing issue between Comcast & Onvoy Craig D. Rice (Aug 02)
- RE: Seeking Comcast Contact: need to troubleshoot packet loss and/or asymmetric routing issue between Comcast & Onvoy Durand, Alain (Aug 02)
- Re: Seeking Comcast Contact: need to troubleshoot packet loss and/or asymmetric routing issue between Comcast & Onvoy William Herrin (Aug 02)
- Re: Seeking Comcast Contact: need to troubleshoot packet loss and/or asymmetric routing issue between Comcast & Onvoy Robert Boyle (Aug 02)
- Re: Seeking Comcast Contact: need to troubleshoot packet loss and/or asymmetric routing issue between Comcast & Onvoy Jim Shankland (Aug 02)
- Re: Seeking Comcast Contact: need to troubleshoot packet loss and/or asymmetric routing issue between Comcast & Onvoy Adrian Chadd (Aug 02)
- Re: Seeking Comcast Contact: need to troubleshoot packet loss and/or asymmetric routing issue between Comcast & Onvoy Jim Shankland (Aug 02)
- Re: Seeking Comcast Contact: need to troubleshoot packet loss and/or asymmetric routing issue between Comcast & Onvoy Valdis . Kletnieks (Aug 02)
- Re: Seeking Comcast Contact: need to troubleshoot packet loss and/or asymmetric routing issue between Comcast & Onvoy Duane Waddle (Aug 02)
- Seeking Comcast Contact: need to troubleshoot packet loss and/or asymmetric routing issue between Comcast & Onvoy Craig D. Rice (Aug 02)