dmz configuration- not working

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Jan 10th, 2006
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i have a pix firewall with 3 interface configuration without NAT or PAT. I put my webserver on the DMZ. however, i cant ping or talk to my webserver either on the inside or outside. i need some assistance as to why its not working.

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turnbull Tue, 01/10/2006 - 18:35
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Try the revised config attached.

You will not be able to ping from outside as it is using port redirection but should be able to ping from inside as well as browse and telnet from outside.



npagadua69 Thu, 01/12/2006 - 16:23
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Paul - I have one more request to make. I also want to open port 554 & 1755 on this server on the DMZ. I want to be able to get to my server from the public side.

Here is the statemenet i had and it does not work:

access-list acl_out permit tcp any host eq 554

access-list acl_out permit tcp any host eq 1755

please help

ashishpanda Thu, 01/12/2006 - 16:54
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Just add these two lines to the should work.

static (dmz,outside) tcp interface 554 554 netmask

static (dmz,outside) tcp interface 1755 1755 netmask


npagadua69 Fri, 01/13/2006 - 14:35
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Thanks, I will let you know if it works. I am still new at this and just trying to get my way around it.

One more question, i would also like to allow Remote Admin from the Inside to the DMZ which mean i want to be able to remote desktop into this machine from the inside to DMZ.


ashishpanda Sat, 01/14/2006 - 05:56
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As in the configuration you have already bypassed NAT between inside and dmz no extra configurartion is required.You will be able to login to your server through remote admin.


jackko Sat, 01/14/2006 - 06:31
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just an add-on.

pix be default permits traffic from higher security level to lower security level providing proper nat/global/static is configured.

inside interface default security level is 100;

outside interface default security level is 0;

dmz interface security level is any number in between.

so, the traffic originated from inside and destined for dmz/outside will be permitted by default by pix.


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