Hello!

I have some problems with my internet connection to bredbandsbolaget here in sweden.
When they have network problems and my server can't connect to their dhcp server for a while (short problems is ok).


Dhclient is trying to connect to the dhcp server a couple of times then I get for example "Jun 10 08:17:40 wolf dhclient: No DHCPOFFERS received."
then i have to do a network restart from commandline to get things working again.

Some times the connection can be up for several months and sometimes it can be several problems every week.


Thankful for all ideas!

best regards uffe

Running redhat 9, dhclient V3.0pl1 and arnos iptablesscript

Below you can see some lines from /var/log/messages


Jun 10 08:16:31 wolf dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67

Jun 10 08:16:37 wolf kernel: Class A address: IN=eth0 OUT= MAC=01:00:5e:00:00:01:00:02:17:29:7c:00:08:00 SRC=10.245.0.29 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=45786 PROTO=2

Jun 10 08:16:38 wolf kernel: Connection attempt (PRIV): IN=eth0 OUT= MAC=ff:ff:ff:ff:ff:ff:00:14:78:bf:fe:39:08:00 SRC=0.0.0.0 DST=255.255.255.255 LEN=576 TOS=0x10 PREC=0x20 TTL=32 ID=5820 DF PROTO=UDP SPT=68 DPT=67 LEN=556

Jun 10 08:16:39 wolf dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4

Jun 10 08:16:39 wolf dhclient: receive_packet failed on eth0: Network is down

Jun 10 08:16:40 wolf kernel: e100: eth0 NIC Link is Up 100 Mbps Full duplex

Jun 10 08:16:43 wolf dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10

Jun 10 08:16:50 wolf named[1836]: no longer listening on 213.113.43.196#53

Jun 10 08:16:53 wolf dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 20

Jun 10 08:17:07 wolf kernel: Connection attempt (PRIV): IN=eth0 OUT= MAC=ff:ff:ff:ff:ff:ff:00:13:46:3e:71:11:08:00 SRC=0.0.0.0 DST=255.255.255.255 LEN=498 TOS=0x10 PREC=0x20 TTL=127 ID=5028 PROTO=UDP SPT=68 DPT=67 LEN=478

Jun 10 08:17:13 wolf dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 15

Jun 10 08:17:28 wolf dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12

Jun 10 08:17:37 wolf kernel: Connection attempt (PRIV): IN=eth0 OUT= MAC=ff:ff:ff:ff:ff:ff:00:13:46:3e:71:11:08:00 SRC=0.0.0.0 DST=255.255.255.255 LEN=498 TOS=0x10 PREC=0x20 TTL=127 ID=5045 PROTO=UDP SPT=68 DPT=67 LEN=478

Jun 10 08:17:40 wolf dhclient: No DHCPOFFERS received.

Jun 10 08:18:07 wolf kernel: Connection attempt (PRIV): IN=eth0 OUT= MAC=ff:ff:ff:ff:ff:ff:00:13:46:17:2e:2b:08:00 SRC=0.0.0.0 DST=255.255.255.255 LEN=498 TOS=0x10 PREC=0x20 TTL=127 ID=50043 PROTO=UDP SPT=68 DPT=67 LEN=478

Jun 10 08:18:39 wolf kernel: Connection attempt (PRIV): IN=eth0 OUT= MAC=ff:ff:ff:ff:ff:ff:00:50:ba:77:7b:62:08:00 SRC=0.0.0.0 DST=255.255.255.255 LEN=328 TOS=0x10 PREC=0x20 TTL=100 ID=4660 PROTO=UDP SPT=68 DPT=67 LEN=308

Jun 10 08:19:09 wolf kernel: Connection attempt (PRIV): IN=eth0 OUT= MAC=ff:ff:ff:ff:ff:ff:00:05:5d:6e:a6:40:08:00 SRC=0.0.0.0 DST=255.255.255.255 LEN=328 TOS=0x10 PREC=0x20 TTL=128 ID=35412 PROTO=UDP SPT=68 DPT=67 LEN=308

Jun 10 08:19:39 wolf kernel: Connection attempt (PRIV): IN=eth0 OUT= MAC=ff:ff:ff:ff:ff:ff:00:50:ba:77:7b:62:08:00 SRC=0.0.0.0 DST=255.255.255.255 LEN=328 TOS=0x10 PREC=0x20 TTL=100 ID=4660 PROTO=UDP SPT=68 DPT=67 LEN=308

Jun 10 08:20:08 wolf kernel: Connection attempt (PRIV): IN=eth0 OUT= MAC=ff:ff:ff:ff:ff:ff:00:03:0d:30:d7:ab:08:00 SRC=0.0.0.0 DST=255.255.255.255 LEN=498 TOS=0x10 PREC=0x20 TTL=127 ID=54039 PROTO=UDP SPT=68 DPT=67 LEN=478

Jun 10 08:20:39 wolf kernel: Connection attempt (PRIV): IN=eth0 OUT= MAC=ff:ff:ff:ff:ff:ff:00:13:46:06:58:53:08:00 SRC=0.0.0.0 DST=255.255.255.255 LEN=498 TOS=0x10 PREC=0x20 TTL=127 ID=40262 PROTO=UDP SPT=68 DPT=67 LEN=478