The IP-less, OpenBSD copper to radio bridge I put together lets my only
wireless client, a PowerBook G4, get an IP issued to it from a bridged
wired network but friends wireless Windows clients cannot. There is no
activity on the bridge ports of a request for an IP when these Windows
boxes try to connect. I have tried the bridge on other networks with the
same results. Note there is no problem getting an IP when these Window
laptops connect via wire. I would appreciate any help on this subject.
The following is my test configuration (no WEP or PF)
dhcpd / ~ ~ ~ ~
--[router]------------[switch]-----[Bridge]~ ~ ~ ~ ~ ~ Wireless PC
192.168.3.0/24 \ ~ ~ ~ ~
The bridge is an IP-less Soekris net4801 with a NL-2511MP+ miniPC NIC.
OpenBSD v3.6 is installed via the flashdist utility from a host system
onto a compact flash. The network is configured by the /etc/rc file and
not the hostname.if and bridgename.bridge0 files.
$ cat /etc/rc
...
...
HOSTNAME=BridgeBox
/bin/hostname $HOSTNAME
/sbin/ifconfig lo0 127.0.0.1 netmask 255.0.0.0
/sbin/sysctl net.inet.ip.forwarding=1
# sis0 Interface:
/sbin/ifconfig sis0 up
# sis1 Interface (not used):
/sbin/ifconfig sis1 up
# sis2 Interface:
/sbin/ifconfig sis2 up
/sbin/dhclient sis2
# wi0 Interface:
/sbin/ifconfig wi0 inet up nwid TestNET media DS11 mediaopt hostap
/sbin/wicontrol wi0 -e 0 -f 11 -s TestSTA
# bridge0 Interface:
/sbin/ifconfig bridge0 create
/sbin/brconfig bridge0 add sis0 add wi0 up
...
...
$ ifconfig wi0
wi0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
address: 00:02:6f:XX:XX:XX
nwid: TestNET
powersave: off
media: IEEE802.11 DS11 hostap
status: active
$ ifconfig sis0
sis0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu
1500
address: 00:00:24:XX:XX:XX
media: Ethernet autoselect (100baseTX full-duplex)
status: active
$ brconfig -a
bridge0: flags=41<UP,RUNNING>
Configuration:
priority 32768 hellotime 2 fwddelay 15 maxage 20
Interfaces:
wi0 flags=3<LEARNING,DISCOVER>
port 4 ifpriority 128 ifcost 55
sis0 flags=3<LEARNING,DISCOVER>
port 1 ifpriority 128 ifcost 55
Addresses (max cache: 100, timeout: 240):
$ wicontrol
NIC serial number: [ 04B260118 ]
Station name: [ TestSTA ]
SSID for IBSS creation: [ TestNET ]
Current netname (SSID): [ TestNET ]
Desired netname (SSID): [ TestNET ]
Current BSSID: [ 00:02:6f:XX:XX:XX ]
Channel list: [ 2047 ]
IBSS channel: [ 11 ]
Current channel: [ 11 ]
Comms quality/signal/noise: [ 0 81 27 ]
Promiscuous mode: [ Off ]
Process 802.11b Frame: [ Off ]
Port type (1=BSS, 3=ad-hoc, 6=Host AP): [ 6 ]
MAC address: [ 00:02:6f:XX:XX:XX ]
TX rate (selection): [ 11 ]
TX rate (actual speed): [ 2 ]
Maximum data length: [ 2304 ]
RTS/CTS handshake threshold: [ 2347 ]
Create IBSS: [ Off ]
Antenna diversity (0=auto,1=pri,2=aux): [ ]
Microwave oven robustness: [ On ]
Roaming mode(1=firm,3=disable): [ 1 ]
Access point density: [ 1 ]
Power Management: [ Off ]
Max sleep time: [ 100 ]
Enhanced Security mode: [ ]
Intersil Prism2-based card: [ 1 ]
Card info: [ PRISM2.5 ISL3874A(Mini-PCI),
Firmware 1.4.9 ]
Encryption: [ Off ]
Encryption algorithm: [ Firmware WEP ]
Authentication type
(1=OpenSys, 2=Shared Key): [ 1 ]
TX encryption key: [ 1 ]
Encryption keys: [ ][ ][ ][ ]
$ ifconfig -m wi0
wi0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
address: 00:02:6f:37:27:60
nwid: TestNET
powersave: off
media: IEEE802.11 DS11 hostap
status: active
supported media:
media autoselect
media autoselect mediaopt adhoc
media autoselect mediaopt ibss
media autoselect mediaopt ibss-master
media autoselect mediaopt hostap
media DS1
media DS1 mediaopt adhoc
media DS1 mediaopt ibss
media DS1 mediaopt ibss-master
media DS1 mediaopt hostap
media DS2
media DS2 mediaopt adhoc
media DS2 mediaopt ibss
media DS2 mediaopt ibss-master
media DS2 mediaopt hostap
media DS5
media DS5 mediaopt adhoc
media DS5 mediaopt ibss
media DS5 mediaopt ibss-master
media DS5 mediaopt hostap
media DS11
media DS11 mediaopt adhoc
media DS11 mediaopt ibss
media DS11 mediaopt ibss-master
media DS11 mediaopt hostap
media manual
With a connected PowerBook...
$ wicontrol -l
00:0d:93:XX:XX:XX asid=0360, flags=3<AUTH,ASSOC>,
caps=421<ESS,SHORT_PREAMBLE>, rates=f<1M,2M,5.5M,11M>, sig=44/7
I'm not sure if a tcpdump captured packets on the wi0 is any use. There
is nothing showing up on Windows boxes and since the PowerBook works,
there seems no need. But please advise. Thanx
--tuco
