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Initiate VPN Client Behind PIX Firewall

Posted on 2004-08-15
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Last Modified: 2010-04-12
I have just installed a Cisco PIX 506E in my network. The outside interface is connected to my cable modem and the internal interface to a switch. Everything works fine, except when I try to initiate a VPN client connection to my office network from my internal network (this worked fine when I used a Linksys router).

I assume I must be missing some additional commands for the PIX to pass the IPSec traffic, but I haven't been able to figure out what I need to do. Thanks.
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Question by:radiusdude
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by:grblades
ID: 11807949
Have a look at this topic to see if it is of any help.
http://www.experts-exchange.com/Security/Firewalls/Q_20587556.html
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lrmoore earned 125 total points
ID: 11810701
What version PIX OS?
Get the latest 6.3x - 6.3(4) just came out

You have to enable NAT-transparency, and this is not supported on anything prior to 6.3
6.3(2) is buggy
6.3(3) has a security hole
6.3(4) is the latest

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by:grblades
ID: 11810766
What is the security problem with 6.3(3) ?
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Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
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by:lrmoore
ID: 11810901
Very minor SSL vulnerability, but if you use SSH and HTTPS to manage it...
http://www.cisco.com/en/US/products/products_security_advisory09186a0080207d5f.shtml

6.3(3)124 build is the "fixed" version
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Author Comment

by:radiusdude
ID: 11810954
Thanks! I was running 6.2(2) - I'll see if I can get the upgrade from Cisco (I bought the PIX used - I'm not sure what Cisco's upgrade policy is...)
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by:grblades
ID: 11811065
How do I find out what build version I am running? I assume that as the build date is last year it is a version which needs upgrading anyway.
'show ver' shows :-

Cisco PIX Firewall Version 6.3(3)
Cisco PIX Device Manager Version 3.0(1)

Compiled on Wed 13-Aug-03 13:55 by morlee
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by:lrmoore
ID: 11811420
>Cisco PIX Firewall Version 6.3(3)
Yours

Mine:
Cisco PIX Firewall Version 6.3(3)124

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Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

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