topic Re: Cisco Guest Mobility Anchor Controller Tunnels are down when placed behind Palo Alto firewall in General Topics

Cisco Guest Mobility Anchor Controller Tunnels are down when placed behind Palo Alto firewall

shabeeb — Sun, 01 Jul 2018 07:35:17 GMT

Hi,

I have a pair of Cisco controllers setup as mobility anchor controllers, which will basically initiate EoIP tunnel between them. Recently we have placed a Palo Alto 5250 firewalls between the controllers through virtual wire interfaces. The physical connectivity is as follows

Cisco Controller 1 ----> Palo Alto VWire-IN -------> Palo Alto VWire-Out -----> Cisco Controller 2

The issue is that after placing the Palo Alto firewall , the tunnel between the controllers is not coming up. I have all allowed the traffic in both directions. There is no rule blocking the traffic. Please let me know if anyone had the similar issue.

Thanks

Shabeeb

Re: Cisco Guest Mobility Anchor Controller Tunnels are down when placed behind Palo Alto firewall

BPry — Tue, 03 Jul 2018 18:28:30 GMT

@shabeeb,

I would wireshark both ends and look and see if the Palo is manipulating the packets in some way. That's about the only thing I can think of that would be breaking this.

@tac.in makes a really good point; you are allowing the traffic with service and application set to 'any' right? I always assume that in a v-wire configuration that is how the rule is built, however that is sometimes something that people can run into.

Re: Cisco Guest Mobility Anchor Controller Tunnels are down when placed behind Palo Alto firewall

tac.in — Tue, 03 Jul 2018 09:47:51 GMT

Hi Shabeeb,

Please try changing service from application-defaults to any. The tunnel might be on other ports other than default ports .

Re: Cisco Guest Mobility Anchor Controller Tunnels are down when placed behind Palo Alto firewall

shabeeb — Mon, 09 Jul 2018 07:24:04 GMT

Hi All,

The issue was that the vlans were not allowed in the virtual wire. Once I allowed the vlans everything worked fine. Thanks for the valuable replies guys.