Hi all,
I'm building a network station to control devices (also remote VPN LAN devices) via snmp.
To better understand the scenario you can see the network layout on the attached png.
As you can see there is a NMS station that sends snmp queries to the devices on 192.168.0.0/24 LAN and to the remote 192.168.1.0/24 LAN.
All work fine because I enabled the snmp traffic on the firewall rules.
Now, I want to control also the ASL B so I enable the SNMP protocol only from the remote NMS station but the ASL B blocks the snmp packets to NMS.
I verified that the INPUT chain of ASL B permits snmp traffic from remote NMS station and that the udp packets arrive to the ASL B.
The strange thing is that the answer of ASL B came from external IP (4.3.2.1) and not from internal IP (192.168.1.1) so it is dropped.
Do you know why?
Other usefull details:
ASL A v. 6.202
ASL B v. 5.211
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