07-26-2006 08:07 AM - edited 03-09-2019 03:42 PM
Hello,
Is it possible to translate ip address of a dmz interface on PIX 6.3.5?
I have put the static configuration and have put acl to permit icmp any any but the host on the outside cannot ping the NATed dmz interface address.
07-26-2006 09:44 AM
I do not think it is possible to ping the DMZ interface from a source that exists behind any other interface. You might be able to get around this by using the management command and set the management interface to teh DMZ.
See below for usage.
07-27-2006 01:52 PM
Hi,
By default PIX doesnt allow pinging its interfaces, to alow that try icmp command which configure access rules for ICMP traffic that terminates at an interface.
[no] icmp {permit | deny} ip_address net_mask [icmp_type] if_name
I hope this will help!
07-27-2006 10:32 PM
Hi,
I founf that command and applied it but no luck. I also tried with conduit command but same result.
07-28-2006 04:10 AM
Hi,
well it should work I guess something wrong with the static command or the access list
Here is an example of a very simple config i've just tried:
....R2.----.(fw).-----.R3
..inside.............outside
10.10.10.1........192.168.10.103
inside local of R2 = 10.10.10.1
inside global if R2 = 192.168.10.1
ip address outside 192.168.10.2 255.255.255.0
ip address inside 10.10.10.2 255.255.255.0
static (inside,outside) 192.168.10.1 10.10.10.1 netmask 255.255.255.255 0 0
access-group tointernal in interface outside
and it works even without icmp command!
here is the output of a telnet connection attempt from outside to inside:
========== from R3
R3#telnet 192.168.10.1
Trying 192.168.10.1 ... Open
User Access Verification
Password:
R2>en
Password:
R2#
pix(config)# exit
======= from the pix
pix# sh conn
1 in use, 1 most used
TCP out 192.168.10.103:11001 in 10.10.10.1:23 idle 0:00:13 Bytes 145 flags UIOB
pix# sh xlate
1 in use, 1 most used
Global 192.168.10.1 Local 10.10.10.1
pix# sh static
static (inside,outside) 192.168.10.1 10.10.10.1 netmask 255.255.255.255 0 0
pix# sh access-list
access-list cached ACL log flows: total 0, denied 0 (deny-flow-max 256)
alert-interval 300
access-list tointernal; 1 elements
access-list tointernal line 1 permit ip any any (hitcnt=6)
07-29-2006 03:31 AM
Thanx, but what you have done is not quite what I was asking.If I use your cnfiguration as an example, I was trying to ping 10.10.10.2 from R3 and that did not work. I was also wondering is it possible to do static translation of 10.10.10.2 (adress of pix inside interface) to, say, 192.168.10.102 and then to ping it from router R3?
07-29-2006 08:04 PM
Got it, so as mentioned by ?mgaysec? it?s not possible to ping one PIX interface from segment on another interface, you can ping only the closest PIX interface. The only exception is using management access tunnel and through IPSec tunnel only.
07-29-2006 06:12 AM
You can ping an interface of the pix only from addresses local to that interface.
So you can ping your DMZ interface only machines/networks connected to the DMZ of your PIX.
you wont be able to ping from other interfaces like INSIDE, Outside
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