Re: need help: vpn broken after upgrade to kernel 2.6.21
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.
>
>
>
>
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