> > I would like them to be informed that the "www.list.org" web-server > > appears to be behind a broken firewall or router that discards packets > > from people using TCP_ECN extension.... I.e. linux 2.4 or 2.6 > > kernel's default configuration. Some *BSD variants include ECN > > with a 'fallback' mechanism so that such users can still connect, > > just ..slowly.. in this circumstance. > I haven't heard of any other complaints of this sort, and this is > a pretty heavily trafficked machine, especially by people running > various distributions of Linux (both being GNU code and all). Well, as I said, Most distributions turn off "tcp_ecn" at boot-time because of the broken-sites out-there. > However, if you can demonstrate the problems with tcpdump or > other packet sniffing/capture tools, I'm sure that this is something > they will check into. Well Urrm. I //can// arrange to make extra logs etc.. Though really I'd be logging 'nonexistant replies' !
The easiest way to demonstrate is turn on ECN yourself on a linux-2.4 or linux-2.6 host. Just "echo 1 > /proc/sys/net/ipv4/tcp_ecn" as root.... Then you will find list.org doesn't work, until you... "echo 0 > /proc/sys/net/ipv4/tcp_ecn" as root.... You can use a Free-Software-Program "tcptraceroute" to demonstrate the works/doesn't_work too... Just "tcptraceroute www.list.org 80" ... should 'work' and give "strongbadia.list.org (206.131.226.62) [open]" etc. Whereas "tcptraceroute -E www.list.org 80" which behaves like linux-2.4/linux-2.6 with tcp_ecn on... currently just fails, giving "* * *" etc. [no answer]. > > But still, this doesn't excuse that server at [www.list.org, > > still breaks communication with TCP_ECN clients... > I'm not sure who the day-to-day administrator is for that > machine. I suspect you're going to have to report this problem to Will do... ;-). > If you don't get a reply from Barry in a couple of days about > this issue (i.e., more than a canned auto-reply), let me know and > I'll try to find out who the appropriate person/people is/are. Right, will see what happens. Understood.. Thankyou for helpful reply, at least. --"enyc" <[EMAIL PROTECTED]> ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-users/archive%40jab.org
