Problem with own access in OOB L3

Hello

We test clean access mode OOB - L3. Users are on a remote site behind a 3845 router. This remote site connects to the central site by a link to WAN\VPN.

CASE is hosted on the Central Site. We have the installer VRF\PBR correctly and works communication between remote hosts from one-Authenticated (in the Auth VLAN) and the CASE. They can also ping the CASE.

The problem is with DNS (or any traffic that is supposed to be passed by the CAs on behalf of remote users.

The Setup is similar to below

PC--> Rt2 (Remote) Rt1--> CASE<--WAN-->--> Trusted Network(DNS Servers etc)

I sniffed packets on the Interface of unreliable and confidence when the remote Client issues a DNS query with lower results

Package on the untrusted Interface:

Source MAC--> tn1 Interface MAC (Interface to CASE)

DST MAC--> unreliable CASE Interface

2. package 'leaving' trusted Interface (i.e. packets DNS provided by CBS)

Source MAC--> tn1 Interface MAC (Interface to CASE)

DST MAC--> unreliable CASE Interface

WITHOUT change of Mac Source\Dst... !

So, it seems that the CASE passes the packet without even changing the Mac of Source\Dst. I know that he is not supposed to change the IP Source\Dst address, but since it does not change even the Dst MAC, so any device on the Trusted Site picks up the package.

What is going on?

Just as a side note the communication between the PC and the CASE itself (on the untrusted interface) works very well and PC can even get to the Page for Re - direct\Auth on the CASE (of course I have to type the IP address in the URL because DNS does not work)

Thank you

Naman

Hi Naman-

I think that you must update the user Page with the new provider that you configured. This should affect both without customer and users of the CCA.

CAM--> Administration--> user--> Edit Pages

Check them label provider (which you already did) and check disable your supplier available, which should include the Radius server you want to use.

If you just want to use the RADIUS, then simply change the default provider.

Let us know if this helps,

Peter

Tags: Cisco Security

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