Question

Pix 515 Programming

Asked by: brianclay

I am having a problem enabling Microsoft Remote Desktop Connection to a server on the LAN through our Pix 515.  Here is a breakdown of what I am trying to do:

Our ISP has given us a block of "LAN" IP's of 68.208.63.x with a subnet of 255.255.255.224.  I am wanting to pick one of the IP's (not yet defined in the PIX) and have it roll to a 10.10.10.x address.  

I am having two problems:

  1) I cant get the "new" address to be recognized in the PIX (if I ping from the outside world I get no repsonse).
  2) Even using the "outside LAN address" for the PIX, I can't connect through RDC.  (I have tried using Access Lists &              Conduits - with no success.  Do I need to explicitly open the port with a Fixup command?).

Any help I could get would be greatly appreciated!

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Asked On
2004-02-11 at 08:56:36ID20881322
Tags

515

,

access

,

block

,

programming

Topics

Network Software Firewalls

,

Cisco PIX Firewall

,

Enterprise Firewalls

Participating Experts
2
Points
500
Comments
2

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Answers

 

by: tim_holmanPosted on 2004-02-11 at 09:17:24ID: 10334119

You explictly need to open up the IP address AND port by means of an access-list command.

The following example illustrates the three commands required to enable access to a RDP server with the external IP address 209.165.201.12:

static (inside, outside) 209.165.201.12 10.1.1.3 netmask 255.255.255.255 0 0
access-list acl_out permit tcp any host 209.165.201.12 eq 3389
access-group acl_out in interface outside

Config guide below if it helps:

http://www.cisco.com/en/US/products/sw/secursw/ps2120/products_configuration_guide_chapter09186a008017278e.html

 

by: judhiPosted on 2004-02-12 at 19:27:29ID: 10349416

May I suggest a little bit weird things.

1. Use your web browser to access PIX Device Manager, the internal mini webserver in PIX
2. Find the option to reset the PIX to factory default
3. The above action also allow you to set initial internal IP address, so you can avoid using console cable
4. Still using PDM, now start adding policies and see how it goes (test the policy right after you apply it).
5. Your Firewall should be able to work exactly like you want.

Hope this helps.
Judhi

20120131-EE-VQP-002

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