DHCP over bridge between WiFi and wired
I have a WAP which serves DHCP requests.
I have a laptop with an 802.11b interface. The laptop connects
to the WAP and gets its IP address via DHCP.
I have another device (Grandstream BudgeTone-101, a non-wireless SIP
phone) which uses DHCP as it boots.
The laptop has an otherwise-unused wired ethernet interface.
I would like to use the laptop as a bridge, thus allowing the SIP
phone to plug into the laptop while I'm laying in bed.
$ grep -A9 br0 /etc/network/interfaces
iface br0 inet dhcp
pre-up egrep --silent '^3c59x' /proc/modules || modprobe 3c59x
pre-up /etc/init.d/pcmcia start || true
pre-up cardctl insert || true
pre-up ifconfig eth0 down || true
pre-up ifconfig eth1 down || true
bridge_ports all
bridge_maxwait 5
bridge_stp on
The bridge seems to work fine, except that the SIP phone never gets
its IP address. Ie DHCP does not seem to completely cross the bridge.
Any hints?
--
Barak A. Pearlmutter <barak@cs.may.ie>
Hamilton Institute, NUI Maynooth, Co. Kildare, Ireland
http://www-bcl.cs.may.ie/~barak/
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