For the curious: I've managed to get crippled (read: slow) web access by setting MTU to 512 on the pptp tunnel.
I've filed a bug report to the debian BTS, with some more info http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=433307 If anyone here has some suggestions: I'm all ears! Avi Rozen wrote: > Hi, > > I'm running debian/lenny on an old Compaq presario 900 laptop that has > become my _desktop_ computer for the past year or so. It's connected > to the internet via a cable modem (pptp vpn, cdc_ether usbnet driver). > > It worked better than I expected until I installed the latest > kernel update (package is linux-image-2.6.21-2-k7). With this kernel I > cannot access any external servers (imap, pop3, web) or connect to the box > from outside (ssh and web). > > Background: firewall is disabled (i.e. "iptables --list" has nothing > to list), "route" reports similar results on both 2.6.18 (previous > kernel) and 2.6.21, mtu/mru are set to 1492 in ppp options, ping and > dns seem to work. > > I've traced network traffic with wireshark, while accessing the web > (www.google.com) with w3m, on both kernels. I'm no expert, but as far > as I can tell network traffic is similar (outgoing _and_ incoming) > upto the point where incoming data (the actual web page) is supposed > to come. With 2.6.21 I see no further incoming packets. > > Any ideas? what should I check next? > Who is the culprit? the kernel? my ppp settings? > I'm loosing sleep over this. Please help. > > Thanks, > Avi. > > > > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]