[ILUG] Cisco VPN Client and NTL Broadband
barry at opensolutions.ie
Sat Feb 9 07:40:02 GMT 2008
Pádraig is probably on the right track.
Can you send the output of the following three commands with and without the
VPN tunnel being initialised:
What may also be useful is the output of a program called lft (Layer Four
Traceroute). If you could install it and run the following, again with and
without the VPN:
It would answer a lot of questions. LFT will try and traceroute using TCP port
Deoending on you system, you may need to be root for some of the above
On Saturday 09 February 2008 01:06:58 Pádraig Brady wrote:
> Éibhear wrote:
> > Hi,
> > We have recently switched from Eircom Broadband to Chorus/NTL.
> > The biggest problem is when my wife connects into her place of work.
> > Whenever she attempts to access any web page, it never renders. What I
> > can see is that the HTTP connections are timing out. But I don't know
> > where to go from there.
> > Perhaps someone on ILUG can offer some pointers on what I can do to
> > figure out what's going on.
> > The following is what I believe is relevant information:
> > + Debian Etch
> > + Cisco VPN Client 4.6.02
> > + Scientific Atlanta cable modem
> > + Firefox (though I see this behaviour with Konqueror and lynx)
> > + Using telnet to the server and port and then using the HTTP
> > GET command for the specific URL works: the HTML source is
> > returned.
> > + Other connection types seem to work fine (IMAP for e-mail,
> > telnet, ping, etc.)
> > Can you suggest a few things or tools I could use that would help me out?
> This only happens when the VPN client is initialised right?
> It's weird that only HTTP has an issue.
> Perhaps there is a proxy setting somewhere?
> I'd guess that the VPN client sets the default route
> out it's virtual interface. So you may want to (re)set
> the default route out your actual ethernet device.
> The VPN server though may not allow this however depending on settings.
> Take this with a pinch of salt as I know feck all about VPNs.
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