How to configure DHCP client on a bridge ?
Olivier Cochard-Labbé
olivier at freenas.org
Thu Mar 12 23:39:02 PDT 2009
Hi,
I'm trying to follow the advice fount in the handbook by configuring
the IP address on the bridge0 interface rather than on a member
interface.
Then I've configured my rc.conf like that:
cloned_interfaces="bridge0"
ifconfig_bridge0="addm bge0 addm xl0 DHCP"
ifconfig_bge0="up"
ifconfig_xl0="up"
But, with this configuration, the dhclient didn't start automatically
on the bridge0 interface.
After a reboot, my bridge0 status is:
[olivier at d630]~>ifconfig bridge0
bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 82:03:c8:73:85:cc
id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
maxage 20 holdcnt 6 proto rstp maxaddr 100 timeout 1200
root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
member: xl0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 5 priority 128 path cost 55
member: bge0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 2 priority 128 path cost 55
I need to manually start the dhclient on the bridge0 for getting my IP address:
[root at d630]~#dhclient bridge0
DHCPREQUEST on bridge0 to 255.255.255.255 port 67
DHCPNAK from 192.168.100.254
DHCPDISCOVER on bridge0 to 255.255.255.255 port 67 interval 6
DHCPOFFER from 192.168.100.254
DHCPREQUEST on bridge0 to 255.255.255.255 port 67
DHCPACK from 192.168.100.254
bound to 192.168.100.58 -- renewal in 432000 seconds.
I'm ussing current:
[root at d630]~#uname -a
FreeBSD d630.freenas.org 8.0-CURRENT FreeBSD 8.0-CURRENT #14: Thu Mar
12 14:17:22 CET 2009
root at d630.freenas.org:/usr/obj/usr/src/sys/DellD630 amd64
What is the good rc.conf parameters for using a dhclient on a bridge interface ?
Thanks,
Olivier
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