Hi everybody
Kiril suspected the ISP not to give a lease, unfortunately it does not seem
to be that easy.
My setup is a laptop with 2 pcmcia cards, one a Xircom card, the other a
D-Link de-660+.
I use dhclient from the dhclient.lrp package.
It works correctly with a lease obtained from my internal dhcp server.
A test with another bering box (Desktop, no pcmcia) shows a correct dhcp
exchange with the ISP.
I changed the iptables policy to ACCEPT to no avail.
I swapped the pcmcia cards to see if the error changes, no difference.
The thing that puzzles me is the syslog recording of wrong packet size. Is
this a driver problem?
Some googling showed that this frequently happens with dhclient 2.x and
certain etwork cards.
Pump shows apparently the same problem.
here is my setup
ip addr show
# ip addr show
1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
3: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
link/ether 00:80:c7:62:2a:8e brd ff:ff:ff:ff:ff:ff
4: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
link/ether 00:50:ba:8d:18:3d brd ff:ff:ff:ff:ff:ff
inet 194.124.158.99/24 brd 194.124.158.255 scope global eth1
a tcpdump recorded at the net side
tcpdump
15:55:46.850719 0:80:c7:62:2a:8e Broadcast ip 342: 0.0.0.0.bootpc >
255.255.255.255.bootps:
xid:0xee767b4b [|bootp] [tos 0x10]
15:55:51.849784 0:80:c7:62:2a:8e Broadcast ip 342: 0.0.0.0.bootpc >
255.255.255.255.bootps:
xid:0xee767b4b secs:8 [|bootp] [tos 0x10]
15:55:52.422460 0:30:19:3b:65:54 Broadcast ip 360: 10.208.128.1.bootps >
255.255.255.255.bootpc:
xid:0x2b03df63 Y:217.162.141.156 G:217.162.140.1 ether 0:e0:98:9c:da:37
[|bootp]
15:56:04.419736 0:80:c7:62:2a:8e Broadcast ip 342: 0.0.0.0.bootpc >
255.255.255.255.bootps:
xid:0xee767b4b secs:21 [|bootp] [tos 0x10]
15:56:06.654650 0:30:19:3b:65:54 Broadcast ip 357: 10.208.128.1.bootps >
255.255.255.255.bootpc:
xid:0xae1f115 Y:217.162.140.168 G:217.162.140.1 ether 0:10:db:7:e2:61 [|bootp]
15:56:08.417986 0:30:19:3b:65:54 Broadcast ip 360: 10.208.128.1.bootps >
255.255.255.255.bootpc:
xid:0x2b03df63 Y:217.162.141.156 G:217.162.140.1 ether 0:e0:98:9c:da:37
[|bootp]
15:56:17.426611 0:30:19:3b:65:54 Broadcast ip 357: 10.208.128.1.bootps >
255.255.255.255.bootpc:
xid:0xd75aba9 Y:217.162.141.215 G:217.162.140.1 ether 0:10:db:14:51:b1 [|bootp]
and here is the syslog output
Sep 1 15:55:43 firewall dhclient: Internet Software Consortium DHCP Client
2.0pl5
Sep 1 15:55:43 firewall dhclient: Copyright 1995, 1996, 1997, 1998, 1999
The Internet Software Con
Sep 1 15:55:43 firewall dhclient: All rights reserved.
Sep 1 15:55:43 firewall dhclient:
Sep 1 15:55:43 firewall dhclient: Please contribute if you find this
software useful.
Sep 1 15:55:43 firewall dhclient: For info, please visit
http://www.isc.org/dhcp-contrib.html
Sep 1 15:55:43 firewall dhclient:
Sep 1 15:55:45 firewall root: Shorewall Stopped
Sep 1 15:55:46 firewall dhclient: Listening on LPF/eth0/00:80:c7:62:2a:8e
Sep 1 15:55:46 firewall dhclient: Sending on LPF/eth0/00:80:c7:62:2a:8e
Sep 1 15:55:46 firewall dhclient: Sending on Socket/fallback/fallback-net
Sep 1 15:55:46 firewall dhclient: DHCPDISCOVER on eth0 to 255.255.255.255
port 67 interval 5
Sep 1 15:55:51 firewall dhclient: DHCPDISCOVER on eth0 to 255.255.255.255
port 67 interval 13
Sep 1 15:55:52 firewall dhclient: ip length 346 disagrees with bytes
received 350.
Sep 1 15:55:52 firewall dhclient: accepting packet with data after udp
payload.
Sep 1 15:56:04 firewall dhclient: DHCPDISCOVER on eth0 to 255.255.255.255
port 67 interval 20
Sep 1 15:56:06 firewall dhclient: ip length 343 disagrees with bytes
received 347.
Sep 1 15:56:06 firewall dhclient: accepting packet with data after udp
payload.
Sep 1 15:56:08 firewall dhclient: ip length 346 disagrees with bytes
received 350.
Sep 1 15:56:08 firewall dhclient: accepting packet with data after udp
payload.
Sep 1 15:56:17 firewall dhclient: ip length 343 disagrees with bytes
received 347.
Sep 1 15:56:17 firewall dhclient: accepting packet with data after udp
payload.
Sep 1 15:56:24 firewall dhclient: DHCPDISCOVER on eth0 to 255.255.255.255
port 67 interval 14
Sep 1 15:56:26 firewall dhclient: ip length 346 disagrees with bytes
received 350.
Sep 1 15:56:26 firewall dhclient: accepting packet with data after udp
payload.
Sep 1 15:56:26 firewall dhclient: ip length 346 disagrees with bytes
received 350.
Sep 1 15:56:26 firewall dhclient: accepting packet with data after udp
payload.
Sep 1 15:56:29 firewall dhclient: ip length 416 disagrees with bytes
received 420.
Sep 1 15:56:29 firewall dhclient: accepting packet with data after udp
payload.
Sep 1 15:56:29 firewall dhclient: ip length 416 disagrees with bytes
received 420.
Sep 1 15:56:29 firewall dhclient: accepting packet with data after udp
payload.
Sep 1 15:56:38 firewall dhclient: DHCPDISCOVER on eth0 to 255.255.255.255
port 67 interval 6
Sep 1 15:56:41 firewall dhclient: ip length 346 disagrees with bytes
received 350.
Sep 1 15:56:41 firewall dhclient: accepting packet with data after udp
payload.
Sep 1 15:56:44 firewall dhclient: No DHCPOFFERS received.
Sep 1 15:56:44 firewall dhclient: No working leases in persistent database
- sleeping.
Thanks for hints.
Erich
THINK
P�ntenstrasse 39
8143 Stallikon
mailto:[EMAIL PROTECTED]
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