NetGear DG834 to Zywall 25 VPN setup problems...


I'm trying to setup a vpn connection between my DG834 and a Zywall 25 firewall, with no success so far.

Both boxes are running latest version of respective firmware.

I'm trying to setup an ipSec tunnel between the two gateways. I get the following error:

xx initiating Main Mode xx sending notification INVALID_PAYLOAD_TYPE to :0

Both routers are set to use 3DES/SHA1 but it seems that they don't agree on the handshake.


  • did anyone manage to setup such a VPN ? If so would you mind posting the settings used ?
  • is there any way to get more detailed logging of the key exchange ?
  • is there any other settings past the one available through the web interface ?

Any help / pointer most welcome



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