Re: dhcp with network restart problem
On Saturday 18 August 2001 05:05, James D Strandboge wrote:
> On Sat, Aug 18, 2001 at 11:51:19AM +0200 or thereabouts, john wa wrote:
> > i have a dodgy cable modem which frequently cuts out requiring it to
> > re-negotiate the link. my firewall/irc box often fails to come back after
> > some cut outs.
> >
> >
> > sometimes the interface remains up with the correct IP address but for
> > some reason it can't find anything on the 'net. the dhcp lease has been
> > the same for 2 months now so it's not the IP address given to the modem
> > changing.
>
> Sounds to me like you are dropping the packets needed by dhcp. Check
> /var/log/syslog when you /etc/init.d/networking restart, and see if you
> are dropping packets. It would work on reboot because the firewall script
> almost always runs after setting up networking.
>
> Regarding the 'dodgy cable modem', I thought I had a dodgy cable modem,
> until I realized I was blocking out a particular igmp packet from my ISP.
> I looked in my logs, and set up a rule to accept the packet from the ISP,
> and now I can leave my computer on for months (6 to be exact) without
> any dhcp problems.
>
> Jamie Strandboge
Greetz,
I'm VERY new to dhcp and cable modems. I have been hammering away on my own
network with assist from helperbees from this list and my brother. I think I
found a little problem with /etc/init.d/networking, where it doesn't seem to
want to call the dhcp client to re-nagotiate the link. I was going to look
into it further, but we decided to try setting the link up for static and
took the info from ifconfig and reset interfaces file and re-up'd the network
and it worked perfectly. The only problem will be that if the network at
@home were to change, I'll have to re-run a dhcp client to re-establish an
ip/dns etc..
Anyhow, I used the dhcpcd client to get online with. I don't think this
client is called when /etc/init.d/networking stop/start/restart is invoked. I
would play with it on your end and verify whether it IS or ISN'T being called.
HTH
--
Jaye Inabnit\ARS ke6sls\/A GNU-Debian linux user \/ http://www.qsl.net/ke6sls
If it's stupid, but works, it ain't stupid. SHOUT JUST FOR FUN.
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