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Re: Debian packaged 2.4.9 kernel prevents internet access to ISP ONLY?!?



On Fri, Aug 31, 2001 at 11:11:00AM -0400, Scott_Patterson@andersonsinc.com wrote:
| 
| I've have a strange problem here...
| 
| On my system I have various Debian packaged kernels (2.2.19 and 2.4.9).
| When I boot into my 2.2.19 kernel, my internet connection is fine. I can
| access all sites and download my email.
| 
| However, when I boot into 2.4.9, I can access all sites EXCEPT my ISP. It
| just hangs there. I'm not too interested in viewing the webpage as much as
| I am getting my email! How or why is this happening? Any ideas how to
| debug/fix it?

What does the output of
    iptables -L -n
    iptables -t nat -L -n

say?  Are you (inadvertently) blocking connections from your ISP?

iptables is only for 2.4 kernels, if you want to see your firewall
rules for 2.2 kernels use
    ipchains -L -n
(I think).

Do you know the IP address of your ISP's machine?  Try 'traceroute
<ip>' to see how far the packets are getting and where they are
stopping.  See also if 'host <hostname>' works for your ISP's machine.

HTH,
-D



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