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. Free software, in a free world, for a free spirit. Please Support freedom!
