Initially raised as an addendum to bug 149780: Comment #24 From Panu Matilainen (pmatilai) 2005-12-20 11:27 EST Hmph, after updating to dhclient-3.0.2-26.FC4 I no longer get a default route with FC4 either unless I manually add GATEWAY=<ip> to the configuration, same as FC5test1 in comment #22 :( Comment #26 From Panu Matilainen (pmatilai) 2005-12-20 12:34 EST [root@weasel ~]# cat /etc/sysconfig/network NETWORKING=yes HOSTNAME=localhost.localdomain [root@weasel ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 BOOTPROTO=dhcp HWADDR=00:11:D8:8D:C4:53 ONBOOT=yes TYPE=Ethernet -> no gateway settings [root@weasel ~]# grep unreachable /var/log/messages* -> nothing there [root@weasel ~]# /sbin/ip route 192.168.255.0/24 dev eth0 proto kernel scope link src 192.168.255.3 169.254.0.0/16 dev eth0 scope link -> no default route [root@weasel ~]# cat /var/lib/dhcp/dhclient-eth0.leases lease { interface "eth0"; fixed-address 192.168.255.3; server-name ""; option subnet-mask 255.255.255.0; option routers 192.168.255.1; option dhcp-lease-time 259200; option dhcp-message-type 5; option domain-name-servers 192.168.255.1; option dhcp-server-identifier 192.168.255.1; option dhcp-renewal-time 129600; option dhcp-rebinding-time 226800; option host-name "dhcppc1"; renew 4 2005/12/22 04:00:09; rebind 5 2005/12/23 08:33:18; expire 5 2005/12/23 17:33:18; } lease { interface "eth0"; fixed-address 192.168.255.3; server-name ""; option subnet-mask 255.255.255.0; option dhcp-lease-time 259200; option routers 192.168.255.1; option dhcp-message-type 5; option dhcp-server-identifier 192.168.255.1; option domain-name-servers 192.168.255.1; option dhcp-renewal-time 129600; option dhcp-rebinding-time 226800; option host-name "dhcppc1"; renew 3 2005/12/21 22:15:30; rebind 5 2005/12/23 08:34:27; expire 5 2005/12/23 17:34:27; } [root@weasel ~]# -> seems ok to me. In any case that used to work just fine with dhclient prior to this update. Like I said, I need to *add* the supposedly forbidden GATEWAY entry to make it work again: [root@weasel ~]# echo GATEWAY=192.168.255.1 >> /etc/sysconfig/network [root@weasel ~]# /sbin/ifdown eth0 [root@weasel ~]# /sbin/ifup eth0 Determining IP information for eth0... done. [root@weasel ~]# /sbin/ip route 192.168.255.0/24 dev eth0 proto kernel scope link src 192.168.255.3 169.254.0.0/16 dev eth0 scope link default via 192.168.255.1 dev eth0 Comment #27 From Panu Matilainen (pmatilai) 2005-12-20 12:41 EST Oh, in case you wonder about the "weasel" hostname: I had that as hostname set in /etc/sysconfig/network when booting but removed it to see if it (being unresolvable outside /etc/hosts) made any difference - it didn't.
Aha! I see the problem now. Your router is on the broadcast subnet '192.168.255', and the dhclient-script was rather crudely testing for this, @ line 278: for router in $new_routers; do if [ -z "$router" ] || [ `IFS=. ip2num $router` -le 0 ] || [[ $router = *255* ]] || [[ "${default_routers[@]}" == *"$router"* ]]; then continue; fi; I was trying to weed out routers that might be set to broadcast addresses; linux does not like having a broadcast address as the default router. I see the above is a bit too draconian a way of doing this. I'm now fixing this with dhcp-3.0.2-28.FC4 / dhcp-3.0.3-18 .
Now fixed with dhcp-3.0.2-28.FC4 / dhcp-3.0.3-18 (FC5) .
From User-Agent: XML-RPC dhcp-3.0.2-28.FC4 has been pushed for FC4, which should resolve this issue. If these problems are still present in this version, then please make note of it in this bug report.
Confirmed, with dhclient-3.0.2-28.FC4 the default route is back without any GATEWAY-settings. Thanks for the very fast fix :)
*** Bug 176390 has been marked as a duplicate of this bug. ***