we have a new installation of a PA-500 (running 4.1.2) which sits behind our edge firewall (TMG 2010) in vwire mode.
basic setup. the pa-500 external interface connects directly into the edge firewalls internal interface and the pa-500 internal interface connects directly to our production network. our DNS, AD etc are all on this production network. the PA-500 is only doing content filtering for web / applications.
we have have the following rules (simplified but basically the important parts)
rule #1 allow internal to external for <selected users>
rule#2 allow internal to external for any users
rule #3 deny from internal to external for any
as you can see rule one is used for selected members on the domain
rule 2 shouldnt be required as this basically lets anyone who isnt a member of the selected group from rule 1 out to the internet anonymously.
and rule 3 is ther as a deny all (which should be there by default)
as you can see rule 2 should be removed BUT the problem is this
If we remove rule#2 our TMG firewall loses connectivity with the production network so loses its secure channel with the domain / domain controls. this causes the firewall to stop authenticating users thus the firewall kills all conenctions.
can you pleae confirm that rule#2 should never be in the pa-500 setup and confirm that in vwire mode the device should not stop non web/application protocols from communicating.
users who are a member of selected group hit rule one. anyone outwith rule one hits rules two (as you would expect)
we seem to have our user group issue solved kal.
now the main problem is getting rid of rule two and why the pa-500 is restricting our edge firewall from communicating with the network.
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