Possible bug in the Bridge-utils/HostAP driver

From: Manjunathan PY (pymanju_at_miel.mot.com)
Date: 2002-06-24 04:20:24 UTC


   I have setup a bridge between wirless LAN and Wired LAN as shown below

			  (Bridge Br0 on Linux box)
                     |       	   		|
station....air if....wlan0---HostAP---eth0---wiredLAN---Proxy---internet

I am not able to browse the internet from the station. I used ethereal on the HostAP linux box (which is also acting as bridge ) to monitor the http request, I noticed that http request reaches the internet Proxy server. But the station is not able to receive any packets from the internet proxy.

Note: I used bride-utils by Lennert Buytenhenk to setup the bridge in the linux box , I am using Prism2 HostAP driver. Route table is as follows
Destination Gateway Genmask Flags Metric Ref Use Iface     *         U     0      0       0 br0
loopback        *             U     0      0       0 lo
default         gateway.irc.com         UG    0      0       0 br0

Can any one please explain why I am NOT able to browse the internet? The browser used to display "Connected to www.google.com ..." and thats it. No further response at all.

After a lot of struggle, I figured out that if I set the MTU size (Maximum Transmission Unit) to anything less than 1400 bytes in the Station, I was able to browse the internet.

What could be the problem!, why is that I have to change the MTU size to make it work.

Thanks in advance,

Manjunathan Padua Y

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