Date: Thu, 23 Feb 2006 18:27:20 +0100
From: "antonio montagnani" < antonio.montagnani@xxxxxxxxx>
Subject: Re: Wget, Yum and network investigation
To: "For users of Fedora Core releases" <fedora-list@xxxxxxxxxx>
Message-ID: < 4c37b6af0602230927w6098941k@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset=UTF-8
2006/2/23, Tim < ignored_mailbox@xxxxxxxxxxxx>:
> Tim:
> >
>
> >
>
> Add "alias net-pf-10 off" to /etc/modprobe.conf and reboot
>
>
Done but nothing changed (as I expected.....). I noticed only that
named server is operating on the router at the office (where I have
problems) and not on my home router where I am now.
But I suppose that the problem is not there....
--
Antonio Montagnani
Skype : antoniomontag
Hi Antonio!
From the thread I do not know which of the routers you updated from the RH8, but I would guess that it is the one you are having problems on. That is just a guess. It may be that something related to the IPv6 stack handling was not handled in the process.
I would be most interested in the contents of /etc/resolv.conf on all machines. It would be nice to know who is being looked at for name resolution.
When I troubleshot an IPv6 name resolution problem at home here I used "tcpdump -w captureFileName &" along with Ethereal to analyze the tcpdump capture files. When I did it some of the packets were truncated so it would be best to use -s 0 (capture packets of arbitrary length) or -s 1515(capture packets as large as the max Ethernet frame) in the tcpdump command.
In my case, turning off IPv6 (accomplished, I believe, by adding "alias net-pf-10 off" to /etc/modprobe.conf and rebooting) did resolve the problem on a single FC4 machine. Since I had an Ubuntu machine on the same network and could see no way to effectively turn off IPv6 on that machine I simply routed nameservice arround the DSL modem which appeared to have problems with IPv6 name serving (probably a frimware problem) and the problem went away. Of course to do this there needed to be an alternative nameserver in /etc/resolv.conf.
It would probably be good to show the contents of /etc/resolv.conf and /etc/modprobe.conf here. If there is another alias related to net-pf-10 in your modprobe.conf I could be troubling you.
Good Hunting!
Tod
