Asym routing and policies

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Asym routing and policies

L4 Transporter

Hi

 

If I have a TCP stream that is initiated and because of routing changes now has to flow through my PA, how to I allow this through.

 

On my other firewall's I can allow non SYN and SYN/ACK through but block SYN's.. How does one do that on a PA with policies ?

 

Alex

16 REPLIES 16

No loopback.2 is not part of the same zone.

 

does zoning influence routing ?

 

I will see if I can describe it again, maybe better.

 

2 PA - active active

 

 

1 trunk (LACP) into the switch ae.1

 

2 vlans'

213 zone ospf

217 zone app server

loopback.1 zone ospf - routerid 

loopback.2 zone inf - Global protect portal - HA IP but fail over , bound to primary no ip arp loading sharing

 

213 - no HA active ip.  but active OSPF interface

217 - HA active ip, enabled ospf but passive  ip - arp load sharing 

 

this is duplicated on the PA's - pa1 and pa2 ... pa1 is the active primary and pa2 - active backup

 

if I have a host PC in vlan 217 that happens to use PA2 , because of the algo used to share.

 

A packet going from the PC to GP portal goes like this

 

PC -> vlan 217 -> PA2 -> out via vlan 213 - because OSPF routes this way -> PA1 -> loopback.2

return path

loopback.2 -> vlan 217 because its directly attached to vlan217.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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