Hi, the issue still persists a full two years later. Wow.
Best regards, Daniel On Fri, Aug 19, 2011 at 09:00:44PM -0500, Frank Bulk wrote: > I found a NOC email account for Citrix and emailed it, and had a response > from someone at Citrix in 15 minutes who promised to forward it on. > > Frank > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > Daniel Roesen > Sent: Friday, August 19, 2011 3:08 PM > To: [email protected] > Subject: Re: IPv6 contact for www.citrix.com - MTU problem? > > Hi, > > On Fri, Aug 19, 2011 at 02:41:38PM -0500, Frank Bulk wrote: > > Matthew Luckie (who developed the scamper tool) passed this on to me, > which > > confirms the www.citrix.com MTU issue: > > > > $ sudo ./scamper -F ipfw -I "tbit -u > > 'http://www.citrix.com/lang/English/home.asp' 2001:1890:111e:201::15" > > tbit from 2001:48d0:101:501::89 to 2001:1890:111e:201::15 > > server-mss 1360, result: pmtud-fail > > app: http, url: http://www.citrix.com/lang/English/home.asp > > [ 0.050] TX SYN 64 seq = 0:0 > > [ 0.184] RX SYN/ACK 64 seq = 0:1 > > [ 0.184] TX 60 seq = 1:1 > > [ 0.184] TX 254 seq = 1:1(194) > > [ 0.328] RX 1420 seq = 1:195(1360) > > [ 0.328] TX PTB 1280 mtu = 1280 > > [ 0.328] RX 1420 seq = 1361:195(1360) > > [ 0.328] RX 1420 seq = 2721:195(1360) > > [ 0.329] RX 1420 seq = 4081:195(1360) > > [ 1.190] RX 1420 seq = 1:195(1360) > > [ 1.190] TX PTB 1280 mtu = 1280 > > [ 2.901] RX 1420 seq = 1:195(1360) > > [ 2.901] TX PTB 1280 mtu = 1280 > > [ 6.521] RX 1420 seq = 1:195(1360) > > [ 6.521] TX PTB 1280 mtu = 1280 > > [ 13.764] RX 1420 seq = 1:195(1360) > > > > You can see that Matthew's server issue a PTB to the citrix server, but it > > continued to send back 1420 byte packets. > > Nice. And of course no reaction to my notice via the web form yet > (I haven't found an email address to mail to). > > So, anybody got IPv6 contacts at AT&T? After all, www.citrix.com is > using (unassigned) AT&T address space... > > Best regards, > Daniel > > -- > CLUE-RIPE -- Jabber: [email protected] -- dr@IRCnet -- PGP: 0xA85C8AA0 -- CLUE-RIPE -- Jabber: [email protected] -- dr@IRCnet -- PGP: 0xA85C8AA0
