Hi Amos, Seems like I was mistaken. It looked and felt like MTU issues but disappeared when I compiled squid 3.2 from the latest sources. I am wondering if it's related to this bug http://bugs.squid-cache.org/show_bug.cgi?id=3528 Thanks Daniel -----Original Message----- From: Amos Jeffries [mailto:squid3@xxxxxxxxxxxxx] Sent: 16 May 2012 03:36 To: squid-users@xxxxxxxxxxxxxxx Subject: Re: Transparent interception MTU issues On 16.05.2012 09:53, Daniel Niasoff wrote: > Hi, > > I am accessing squid through a PPTP tunnel and have a lower MTU as a > result. > > I am able to use squid ok as an explicit proxy however when trying > transparent interception many pages timeout and don't open. > > I guess this is because of MTU issues. Likely. But Please check your guesses before looking for a fix to them. ping -s 1499 ... PMTU response or lost packet? > > I have tried "http_port 3129 intercept disable-pmtu-discovery=always" > but to no avail. > > I am using 3.2.0.17. > > Any ideas? If it actually is MTU issues, fix them. * Enable ICMP control messages to cross the network. * set MTU and/or MSS on the tunnel entrance to an appropriate low value. Amos
