[strongSwan] disable sending vendor id

[Tobias Brunner]

Hi Marco,

> kindly, I would like to know if there is a way to
> make strongswan not send the 'vendor id'.

There is currently no option to generally disable Vendor IDs as some are 
basically integral part of IKEv1 e.g. to use XAuth or DPDs, and 
especially to negotiate NAT-Traversal (only the strongSwan and Cisco 
Unity vendor IDs can be disabled with individual settings, both are 
disabled by default).

Better use IKEv2 anyway.

Regards,
Tobias