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RE: [FW1] Authenticating to an NT domain through Checkpoint 4.1



Didn't CP include some code for translating NetBIOS properly in 4.1?
I seem to remember seeing some documentation on it somewhere.

Darren


-----Original Message-----
From: Murphy, Paul [mailto:[email protected]]
Sent: Friday, October 20, 2000 2:14 PM
To: 'Hankins, Bill'; '[email protected]'
Subject: RE: [FW1] Authenticating to an NT domain through Checkpoint 4.1



You have to somehow ensure that the IP address that the netbios client sees
is the same one as the server that issued it.
 
So if you NAT it, then you need to NAT it back.
 

-----Original Message-----
From: Reynolds, Tom [mailto:[email protected]]
Sent: 20 October 2000 13:55
To: 'Hankins, Bill'; '[email protected]'
Subject: RE: [FW1] Authenticating to an NT domain through Checkpoint 4.1


Microsoft's NBT stuff doesn't work real well with NAT, in fact it is almost
impossible to even set up an NT Trust through FW1 because MS includes the IP
address of the PDC in the data portion of the packet, and Checkpoint
won't/can't translate it.  (Although I have seen it work with Cisco
Routers/PIX NAT)
 
Check out this link for more NT info.  Good luck.
http://www.phoneboy.com/fw1/nt.html <http://www.phoneboy.com/fw1/nt.html> 
 
If you need to do this, try using a VPN and Secure Remote.
 
Tom Reynolds, MCSE, CCNA 
_________________________ 
Pilgrim Baxter and Associates 
Network Security and Engineering 
825 Duportail Rd. 
Wayne, Pennsylvania [email protected] 



-----Original Message-----
From: Hankins, Bill [mailto:[email protected]]
Sent: Thursday, October 19, 2000 5:38 PM
To: '[email protected]'
Subject: [FW1] Authenticating to an NT domain through Checkpoint 4.1


Just wondering if anyone has had any success with this ??
 
Checkpoint Firewall 4.1 is NATing our private ip's to public ip's where our
PDC sits.  Server is browseable via NETBIOS, request for authentication
reach the PDC\WINS server, but no answer is ever sent.  Thank you for any
help in advance..
 
Bill Hankins
Network Engineer
iPhrase Technologies



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