Correction! Firmware ver 09.10 (CD Ver 1.42/1.43) for airBridge is
single Mac and is transparent device and it doesn't modify the packet
passes. The newer ver 0.01.04 (CD ver 1.51) is Multimac and it does
modify the packet as per Lars mentioned. 

Alex
sB Tech Support
 
 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Lars Gaarden
Sent: Wednesday, July 23, 2003 7:39 AM
To: '[EMAIL PROTECTED]'
Subject: Re: [smartBridges] Packet Mods

Roger Tidey wrote:
> I am looking for information on any Packet Modifications made through
the
> Airbridge Totals
> 
> I have a clients VPN that is potentially being firewalled, due to a
bad
> checksum on the packets.
> 
> Appearantly there is some MAC Modifications to the Packets?

The airBridge is a single MAC unit. IP traffic forwarded from the
ethernet side of the aB to the wireless side has the source MAC
address rewritten to the MAC address of the airBridge. On frames
received from the wireless side, it looks at the IP and rewrites
the destination MAC address before forwarding it to the ethernet
side.

If you need completely transparent forwarding of ethernet frames,
use the airPoint(Pro) in client bridge mode. The only caveat is that
you must make sure that the access point supports "address 4" mode.

-- 
LarsG

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