SNMP across interfaces/subnets?

  • Hey guys - I have an Observium VM that is on my LAN interface ( and I can add SNMP devices into it on that subnet.  I have a "DMZ" that is on and can ping the boxes from the Observium VM but cannot do an SNMP query.  The permissions are fine, if I put the Observium VM on the DMZ interface then I can query.  I have the following on my LAN interface:

    IPv4 * * * * * * none

    And the following on my DMZ interface:

    IPv4 * * * * * * none

    What gives here?

    Thanks in advance!

  • Rebel Alliance Developer Netgate

    Is the firewall the default gateway for both segments?

    Is anything multi-homed between those segments?

  • LAYER 8 Global Moderator

    I have observium running on my lan interface and query stuff on other segments just fine.

    How is it a dmz if you allow it any any access? ;)

    What error do you get in observium when you go to setup the device?

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