Panorama & "Managed Devices" unable to connect

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L1 Bithead

Panorama & "Managed Devices" unable to connect

I believe I have set up the Panorama and Firewalls correctly as per a few different KB articles I've read. I've check connectivity between the MGT interfaces, made sure that the attempts weren't being denied due to the fact that "permitted IP's" were configured. I even checked out a TCP dump of the connection on TCP 3978, and see ack's going out to the firewalls, however any return traffic just comes back stating a window size of 0. Any advice?

 

P.S.

I've checked the MTU and have no SSL-Certificates setup.

L7 Applicator

Re: Panorama & "Managed Devices" unable to connect

Window size of zero may not be an issue if the connection hasn't opened yet.

 

The firewalls themselves make the connection to Panorama, so you can grab a tcpdump on the firewall's management interface using Panorama's IP as the filter:

 

tcpdump filter "host 192.0.2.1" snaplen 0

 

Once that's completed, you can transfer it via SCP or TFTP if you want to take a further look. Check to see that there's an established connection. If not, there should be some frames that lead you to the root cause.

 

One note: if the firewall's management interface is subject to security policy because it traverses the firewall, you'll need a security rule (and possibly source-NAT) to ensure it's allowed and can route.

L1 Bithead

Re: Panorama & "Managed Devices" unable to connect

Thanks, sorry got caught up yesterday. I'm stumped, the TCP connection will get all the way to FIN and then I'll see a retransmission. Followed by another 3-way handshake and more of the same. I think I'm just going to forgo using the MGT ports and connect them via in-band L3 ports. Thanks for trying to help.

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