I have the following problem with a pair of senao 3054CB3+d units used as a bridge.
The network address is 192.168.0.0/24
We have office A: Hosting PC's and one end of a wireless bridge.
We have office B: having the other end of the wireless bridge, also a firewall ( 192.168.0.1 ), and a router ( 192.168.0.2 )
The wireless units have there default route set as 192.168.0.1.
If a PC in office A either has a static route for a network available via the router 192.168.0.2, or has it's default route set as 192.168.0.2, the traffic still goes to the firewall at 192.168.0.1.
I believe this should not happen as by definition a bridge acts only on layer 2 of the ISO model, but it is effecting the packets with layer 3 decisions.
This is driving me crazy. Should this happen? This is the first time I have used a wireless bridge, but being using traditional network bridges for years without any problems like this.
I take it that the PC's are running windows of soe form? I have seen a degridation in performance caused by windows broadcasts. you may want to sniff the network in order to see what is flowing where.
also depending on the size of the network you may want to look at sticking a true router in at office A. you can then clean up what is being sent back and forward over the network. One at both ends would also allow you to create an encrypted pipe over the wireless network and increase the companies security.
There are only 10 Hosts on the A side. 5 Linux/BSD Servers and 5 clients ( PC, MAC and Linux )
I agree with your suggestiions but they do not address the problems I have got.
I do have more information and a question as a result. Is it normal for wireless bridges to rewite MAC address? I ask this because this is what the senao wireless bridge is infact doing.
From the A side all of the MAC address of the routers on the B side appear to be that of the wireless bridge on the B side. A conventional bridge does not do this, yet the Senoa is.
I think this is the cause of the problem.. Any comments?
I have seen with Senao, Dlink and i think the linksys has the option to clone the mac or not clone it. most AP's also have the option to turn this off. Im not sure about the Senao's as we prefer to only see one MAC and not all the client's machines.
From memory the earlier Senaos had an option to turn this on and off.
Yes the Senao units have two Clone mode options. 1) WLAN Card and 2) Ethernet Client.
By default it was set to WLAN. When I changed it to Ethernet the unit presents it self as the first MAC address that it finds on it's end of the link. I have found comments on the Net about this.
If the first MAC is sees if the router, then I can route to the other networks we are connected to, if it sees the firewall ( which does not route ), access to the other networks is not possible.
So in 'Ethernet Client' mode the router or firewall appear to the machine on the 'A side' as the first MAC address that is seen by the bridge, and not unique MAC address per system on the B side. The reverse is also true.
The result is still the same. It is breaking the routing for the traffic across the bridge.
The solution ( which I was hoping would be only tempory ), which is to set the default route on the Birdge to that of the router, which then can forward traffic to the Firewall. This will not work in the future when more routers at both ends of the link get installed.
I have used some Orinoco equipment in the past and it preformed as a bridged should IMHO...
I have sent several emails to support at senao but thus far got zip out of them.. Bugger.