Sounds like Shaw is borking your lease. I've seen problems with rogers since the @home split - likely this is the case where you are. Shaw is now running their own DHCP servers (or are farming them out - tho that wouldn't make a lot of sense). Either way the server is likely different than the @home server - I get odd options when getting my Address (option 82 or something). Unfortunately Shaw likely won't help you as you are running an "unsupported" OS etc. And I can almost guarantee that if you hook up a M$ box that it will negotiate properly - because for some reason Windows doesn't seem to care about weird leases - or lease time frames. You could try using Udhcp available here:
http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/leaf/devel/guitarlynn/udhcp.lrp.dachstein My dhclient.leases is fairly large - but I find it useful to find out why I may not be getting an IP - and it can also indicate a possible IP reconfiguration (short least times). HTH S >From: Paul Rimmer <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: [Leaf-user] RE: dhclient and firewall question >Date: Thu, 14 Mar 2002 20:08:17 -0700 > >This weird dhclient/dhcp problem just happened again. I notice that I lose >my net connection on all LAN PCs. LRP box is still running. Bring up >weblet interface and notice that box has 2 IP's?? > >eth0: mtu 1500 qdisc pfifo_fast qlen 100 > link/ether 00:80:5f:b2:53:2d brd ff:ff:ff:ff:ff:ff > inet 24.64.ww.xxx/22 brd 24.64.43.255 scope global eth0 > inet 24.64.yy.zzz/22 brd 24.64.43.255 scope global secondary eth0 > >This is a simple DCD v1.01 config. Single Shaw cable modem connection to >home network through LRP box. I've attached the details from below as they >apply again. Nothing changed on my side to initiate this. I didn't get >any >feedback to the questions below last time this happened. I just rebooted >and all was fine. Seems like I can't get past ~ 1 month uptime because of >this. > >After rebooting, box only lists one IP address (the secondary one from >above). > >Any ideas? Is anyone else on this list with Shaw cable seeing anything >like >this? > >Thanks, >Paul Rimmer >Calgary, Alberta, Canada > > > -----Original Message----- > > From: Paul Rimmer [mailto:[EMAIL PROTECTED]] > > Sent: February 1, 2002 10:36 PM > > To: [EMAIL PROTECTED] > > Subject: dhclient and firewall question > > > > > > Wow, for the first time since I can remember, my IP address has > > changed via DHCP with Shaw cable. I've seen it happen when I've > > changed eth0 NICs before, but never for no apparent reason. > > > > The reason I noticed is that I saw a boatload of port80 logs. I > > have a line added to ipfilter.conf to not log port 80 stuff: > > > > #Deny and don't log Code Red stuff on port 80 > > $IPCH -I input 3 -j DENY -p tcp -s 0/0 -d $EXTERN_IP/32 80 -i $EXTERN_IF > > > > I checked my ip address via "ip addr" and saw the following for eth0: > > > > 7: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100 > > link/ether 00:88:5f:c2:56:2e brd ff:ff:ff:ff:ff:ff > > inet 24.67.xx.xx/24 brd 24.67.xx.255 scope global eth0 > > inet 24.64.yy.yyy/24 brd 24.64.yy.255 scope global eth0 > > > > Weird. It appears eth0 has 2 IP addresses!?! My firewall is > > configured to block the first (I've had it for eons) but has no > > entries for the second. When I checked syslog there was a ton of > > "dhclient: DHCPREQUEST on eth0 to 24.64.aa.bbb port 67" starting > > a couple of days ago, then tonight I finally received the new IP > > (24.64.yy.yyy): > > > > Feb 1 16:34:21 ronin-firewall dhclient: DHCPREQUEST on eth0 to > > 255.255.255.255 port 67 > > Feb 1 16:34:21 ronin-firewall dhclient: DHCPNAK from 24.64.yy.1 > > Feb 1 16:34:21 ronin-firewall dhclient: DHCPDISCOVER on eth0 to > > 255.255.255.255 port 67 interval 4 > > Feb 1 16:34:21 ronin-firewall dhclient: DHCPOFFER from 24.64.yy.1 > > Feb 1 16:34:24 ronin-firewall dhclient: DHCPREQUEST on eth0 to > > 255.255.255.255 port 67 > > Feb 1 16:34:24 ronin-firewall dhclient: DHCPACK from 24.64.yy.1 > > Feb 1 16:34:27 ronin-firewall dhclient: bound to 24.64.yy.yyy -- > > renewal in 86400 seconds. > > > > Basically it wasn't until dhclient sent out a broadcast > > DHCPREQUEST that it got a response. I thought DHCP was a > > broadcast protocol? I notice the "option dhcp-server-identifier > > 24.64.aa.bbb" field in my dhclient.leases file. I guess this is > > used where possible then go back to 255.255.255.255 when it fails > > after trying for 24 hrs? > > > > Another strange thing is that my /var/state/dhcp/dhclient.leases > > file is growing with a new entry for every renegotiation about > > once every 24hrs. > > > > Questions: > > > > 1) When I get a new IP via DHCP shouldn't the firewall rules > > automatically update (I have dhclient 2.0pl5)? > > 2) Shouldn't "/var/state/dhcp/dhclient.leases" only contain a > > couple of entries and not grow over time? Anyone else see this > > file growing? > > 3) Shouldn't an ethernet adapter only be able to have one IP vs. > > the two I am seeing reported by "ip addr"? If there is 2, how > > would the firewall know which to use for the ipchain entries? > > > > I am wondering if this could have anything to do with my > > registering a domain and mapping it to my shaw ip? I have a web > > server running behind the firewall that is used only by me to > > check on the status of the house and some other low bandwidth > > stuff. The day I got my domain setup to point to my dynamic (but > > never until now, changing) IP I was flooded with port 25 (POP) > > traffic until I added a new rule similar to the code red one for > > port 80 above. > > > > Maybe the new IP is just caused by a DHCP server switch for my > > ISP but then why am I seeing the weirdness described above? > > > > Anyone have any ideas as to what might be happening? > > > > Cheers, > > Paul > > > > > > > > > > >_______________________________________________ >Leaf-user mailing list >[EMAIL PROTECTED] >https://lists.sourceforge.net/lists/listinfo/leaf-user _________________________________________________________________ Join the world�s largest e-mail service with MSN Hotmail. http://www.hotmail.com _______________________________________________ Leaf-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/leaf-user
