topic application override not working in General Topics

application override not working

mbs.admin — Mon, 24 Nov 2014 13:25:37 GMT

Hi,

We configured Palo Alto in vwire mode between our head office and branches. Setup is like Core <--> PA3050 <--> WAN Switch. There is a specific application that is not working and we create custom application by defining the destination port. We create application override and security policy to allow the specific application but its not working.The application is bank ATM, teller machines. Any help is appreciated.

Thanks,

MBS

Re: application override not working

ssharma — Mon, 24 Nov 2014 13:31:01 GMT

Can you share the application override application that you have configured ? And also send us the output of the session when it goes through firewall :

show session all filter source <source-ip> destination <destination-ip> destination-port <port-number>

Also attach the security policy which allows this traffic? Is this application tcp or udp? Also is it recognized as unknown-tcp/udp or some other application? Thank you.

Re: application override not working

mbs.admin — Mon, 24 Nov 2014 17:02:22 GMT

Hi ssharma,

Just found out that the teller machines are using sna protocol. Is this supported by PAN?

Thanks,

MBS

Re: application override not working

ssharma — Mon, 24 Nov 2014 17:36:32 GMT

For application override protocol should be either tcp or udp, that might be the reason why it is not working.

Re: application override not working

HULK — Mon, 24 Nov 2014 18:17:12 GMT

Hello mbs.admin,

In order to apply an Application override policy on a PAN firewall, you have to create a custom application ( How to Create an Application Override Policy) . But, the application should use UDP/TCP/ICMP protocol to override it. Since SNA is not using TCP/UDP/ICMP, that could be the reason it's not working.

Thanks

Re: application override not working

mbs.admin — Tue, 25 Nov 2014 08:28:31 GMT

Hi HULK/ssharma,

Yes, agree application override will not work with this kind of protocol. Any suggestions how we can bypass sna protocol? We deploy PA in vwire mode.

Thanks,

MBS