From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050224 Firefox/1.0.1 Fedora/1.0.1-1.3.1 Description of problem: For some reason, after updating dhcp and dhclient to version 3.0.1-40_FC3 the dhcp system will stop working correctly and the connection to the internet will disappear. This is some parts from /var/log/messages: with 3.0.1-40_FC3: -cut- dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67 dhclient: DHCPACK from 213.xxx.xxx.xxx ifup: cp: ifup: `/etc/resolv.conf' and `/etc/resolv.conf.predhclient' are the same file NET: /sbin/dhclient-script : updated /etc/resolv.conf dhclient: bound to 213.xxx.xxx.xxx -- renewal in 7876 seconds. ifup: done. -cut- Still I can't get any connection to the internet with this version of dhclient. Also dhcp 3.0.1-40_FC3 doesn't seem to give any working ip address for other computers connected to my Linux-PC. Version-Release number of selected component (if applicable): dhcp-3.0.1-40_FC3, dhclient-3.0.1-40_FC3 How reproducible: Always Steps to Reproduce: 1. Update dhcp and dhclient from 3.0.1-30_FC3 to 3.0.1-40_FC3 2. Restart network Additional info:
You probably have a 'GATEWAY=' setting in /etc/sysconfig/network-scripts/ifcfg-ethX for the ethX you are configuring with dhclient . dhclient-3.0.1-40_FC3 now correctly honors the GATEWAY and GATEWAYDEV settings, and will, if GATEWAY is set, ONLY set the default route to be via GATEWAY if GATEWAY is on the subnet received from DHCP - otherwise, it sets NO default route. So your dhclient session is probably not setting the default route. Remove GATEWAY from /etc/sysconfig/network-scripts/ifcfg-ethX and everything should work OK - let me know if not.
This was not the cause of this problem. Here are my ifcfg-ethX files (eth0 is for internet connection, eth1 is for my laptop for sharing the internet connection) ifcfg-eth0: DEVICE=eth0 BOOTPROTO=dhcp HWADDR=00:10:B5:B4:6B:2F ONBOOT=yes TYPE=Ethernet DHCP_HOSTNAME=hostname USERCTL=no PEERDNS=yes IPV6INIT=yes ifcfg-eth1: DEVICE=eth1 BOOTPROTO=static HWADDR=00:0C:6E:29:1F:BA ONBOOT=yes TYPE=Ethernet USERCTL=no PEERDNS=no IPV6INIT=yes IPADDR=192.168.0.1 NETMASK=255.255.255.0 GATEWAY=192.168.1.1 Am I really the only one who has this kind of problems or are the others just unable to connect to the internet? :)
No, no problems with dhcp-3.0.1-40_FC3 have been reported except for the 'GATEWAY=' issue. Do you have GATEWAYDEV set in /etc/sysconfig/network ? Is the problem that you are using dhcpd serve addresses to a local client, and the local client does not get the IP address ? If so, please append the /etc/dhcpd.conf file from the server to this bug. Please also do the following on the client: # ifdown eth0 # ifconfig eth0 0.0.0.0 up # tcpdump -vvv -i eth0 -s 2048 port bootpc or port bootps \ 2>&1 | tee /tmp/dhcp_tcpdump.log & # tpid=$! # ifup eth0 # kill $tpid And then append the /tmp/dhcp_tcpdump.log to this bug - thanks.
The tcpdump command should have been: # tcpdump -nl -vvv -i eth0 -s 2048 port bootpc or port bootps \ 2>&1 | tee /tmp/dhcp_tcpdump.log &
Ok, now I found the reason. I had GATEWAY and GATEWAYDEV defined in /etc/sysconfig/network, didn't notice that one earlier. I removed the settings and now the updated dhclient and dhcp packages work fine! Thanks for your help!