01-12-2007 10:10 AM - edited 07-03-2021 01:28 PM
Hi!
I have a 870-router running 12.4(9)T2.
my setup consists of a bunch of PC's connected using a 3com wireless bridge and one wireless laptop. The 870 is also acting firewall, so it has an internet connection in fa4.
All devices can reach the router and internet. But the laptop and the other devices cannot connect to each other. Is there a command that I need to enter to allow two wireless clients (bridge + laptop) to connect to eachother? Or is it just the stupid 3com bridge that is acting wierd?
A capture of the traffic shows that the PC's dont get any answers from the arp request. So I just tried to enter static arps on the hosts, but that didnt help.
Any advices would be highly appreciated
The wireless setup is like this:
interface Dot11Radio0
description WLAN
no ip address
!
encryption key 1 size 128bit 7 my_key transmit-key
encryption mode wep mandatory
!
ssid my_ssid
authentication open
!
speed basic-54.0
station-role root
no dot11 extension aironet
bridge-group 1
bridge-group 1 spanning-disabled
end
Not the best security, but there is no other options as long as I keep the bridge....
Thanks
01-18-2007 11:18 AM
This looks like an issue with the configuration on the bridge. Are the wired devices able to communicate with each other?
01-19-2007 05:52 AM
I believe you have to enable PSPF (public secure packet forwarding) to have two wireless devices connect while using the same AP... this is not allowed by default
01-19-2007 08:30 AM
Actually, I think it'd be disable PSPF.
FWIW
Scott
01-27-2007 12:23 PM
I've been having the same problem for several months now and it's driving me NUTS. The problem is *not* your 3Com bridge... I'm using an 871W (with wireless built right in to the chassis) and it still refuses to arp for wireless clients. It's totally unrelated to PSPF, as turning it off and on made no difference.
I'm reasonably convinced this is a bug. I'm going to open a TAC case and see what they say.
01-08-2009 11:51 AM
just curious if you got a positive response from TAC on this that led to a solution?
01-08-2009 12:35 PM
No, I ended up replacing it with an Apple Airport Extreme. Go figure. Now the 871 is just a lab box.
FWIW, I will mention that this was about 18 months ago, so I'm sure tons of new code has come out since then... it may be worth trying the latest IOS to see if the same behavior still exists.
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