RV-320 Port Address Translation does not

Hi all

I have a really weird question that drives me crazy.  I have a somewhat complex configuration that goes something like: access provider Internet by Modem cable ==> internal ==> ASA5505 ==> LAN router.  Have a few servers on the internal network, I want to be able to access from the outside.

Everything worked fine until I decided to trade in my old router 1841 for this RV router, because it has faster WAN interfaces and uses less energy.  Initial Setup was extremely easy.  Port Address Translation is enabled by default, my internal clients can get out of the 'net without problem.  But no matter what I try, I can't access internal servers.

I contacted the support of Cisco.  They spent about 2 hours on my machine and ultimately told me that the problem is with my ASA (it is no longer under warranty).  But still I can disconnect the RV and reconnect the 1841 (or a former 1605, I still have) and all begin to operate.

To prove or disprove the ASA being the culprit, I decided to test trying to open an SSH session to the SAA itself.  Should not be double-nat, as the ASA didn't need to pass this traffic to another internal peripheral.

Once I try a connection (and it fails), I check the log "inbound" on the RV he gets 3 hits, indicating 'successful connection '.

Details of the journal are strange.  It shows the port as Eth1 and port out Eth0.  Seems to me this should be reversed, as I use as my ISP port WAN1 and WAN2 for my network internal.

The IP Source address matches the external IP I use; lists correctly inside the ASA

Most confusing are the MAC addresses.  The MAC Source does not belong to everything that I have, I would say.  I checked all the interfaces on the RV, the ASA and my switches.  The MAC (00:12:d9:54:a7:63) shows that belonging to Cisco.  My cable modem is a Cisco device.  But it shows a completely different Mac.  It is a mystery.  Then address MAC of Destination solved the WAN1 on the RV is interface * that * correct?

Please tell me where I can go from here.  I can't believe that this device cannot successfully perform a translation of port address / redirect.

Thank you!

Brian

Brian,

Sorry about the way it had to go on the creation of personalized services, I didn't it would fail to ports known. I'll see if I can find someone here who can give advice on the installation of the ASA, although this would be a good idea to post your questions and config in these forums.

-Marty

Tags: Cisco Support

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