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 From:  Chris Buechler <cbuechler at gmail dot com>
 To:  m0n0wall <m0n0wall at lists dot m0n0 dot ch>
 Subject:  SNMP over IPsec VPN
 Date:  Tue, 5 Oct 2004 01:19:40 -0400
SNMP can't be queried over an IPsec VPN tunnel.  Several of us in
#m0n0wall have tried this and it doesn't work.

This has been discussed before on the list in this thread:

And the general consensus was "there is no reason it shouldn't work",
but it doesn't.

From remove VPN, if I nmap UDP scan the LAN IP of the remote m0n0wall,
it shows 161/udp open.  But snmpwalk won't pull anything.  Not getting
blocked by the firewall.

I know there are workarounds, but some enlightenment on a solution or
why it doesn't work, for documentation purposes, would be much