We have a BM 3.8 SP2 server on NW 6.5 SP2 running for C2S VPN connections
only, but we are having problems with some users connecting using NMAS

If a user dials up to the internet, or uses an ADSL connection, the VPN
will connect with no problems. If the same user then tries to connect to
the server using
a PCMCIA 3G wireless card (3G or GPRS dependant on signal strength ) it
finds the server but then times out after a few minutes and they get a DH
Public value error.
Possible causes/fixes ?

Also, I've noticed in the VPN monitor in NRM, the Key Management type is
'NATed IKE ' when using a 3G card and just IKE when not. Can anyone
explain this ?