We have a UTM120, and I have configured and been working happily with L2TP IPsec remote access connections for a couple of months.
However, I have finally decided to try to set up a secondary ISP input to act as a backup VPN line to the system.
We have a single public-facing IP on an interface presented via Ethernet, and a second public-facing IP on an interface using PPPoE (so the logs show eth1 and ppp0 interfaces active).
Individually, the VPN will establish on either of these connections (we have vpn.companyname.com and vpn2.companyname.com set up to point at each connection).
However, in order to tie these two interfaces to listen on L2TP connection at once, I created a group with the two adapters contained.
Once I assign the group as the interface, only the highest-order adapter gets used. Whatever is lower down, complains:
initial Main Mode message received on x.x.x.109:500 but no connection has been authorized with policy=PSK
I guess, should the primary line go down, that the secondary VPN link will actually work - but it strikes me as odd that I can't actually connect via either connection (since I was tempted to try and use DNS round-robin to balance between both adapters).
Anyone else got the L2TP remote access VPN to bind to more than one input adapter at once?
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