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How can I enable access the Cisco PIX outside NAT interface?

Posted on 2006-11-02
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Last Modified: 2013-11-16
I setup one to one NAT from Cisco PIX, but I can't access or PING the ouside IP from internal network. Any Solution?
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Question by:kennycpu
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Expert Comment

by:Pete Long
ID: 17856823
outside ping is disabled by default

to turn it on toy need to add the following line to the config

icmp permit any echo outside

The ONLY way to manage a PIX from outside is via a VPN!! you need to enable a VPN to the firewall.
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by:lrmoore
ID: 17857222
>I can't access or PING the ouside IP from internal network
Correct. This is by design of the pix.
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LVL 32

Expert Comment

by:rsivanandan
ID: 17868461
What exactly are you trying to access with this ? Provide more information. Also mention if this nat you have created is resolved using external dns server.

Cheers,
Rajesh
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Author Comment

by:kennycpu
ID: 17882654
Of course I can ping outside IP from outside. I mean I cannot access the ouside NAT IP from inside network.
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by:kennycpu
ID: 17882674
I am now using 2 DNS server, One for outside REAL IP setting. Another use for internal DNS server which set with internal LAN IP.
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rsivanandan earned 100 total points
ID: 17882701
If you have the dns server internally for this REAL ip, then there is nothing that can be done. It is per design as Lrmoore stated.

Cheers,
Rajesh
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Expert Comment

by:lrmoore
ID: 17914989
Why shoot the messenger with a C grade (actually the 2nd messenger) just because you don't like the answer?

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by:rsivanandan
ID: 17915049
Don't expect anybody to answer your future questions if this is the way you judge them. First of all this has to be split and grade C just because it can't be done ? I don't own Cisco.

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