[SR-Users] IMS IPSec does use UDP socket?

[H Yavari]

Hi to all,
I am interested in the implementation of IPsec module. When I run Kamailio, it is creating processes based on the below formulate:
UDP children * IPSEC_MAX_CONN * interfaces (v4 and v6) + (TCP+UD) processes for each interface.
For example: 
children = 16tcp_children=16
IPSEC_MAX_CONN = 25and two interface : IPv6 and V4
Kamailio process count = (16 * 25 * 2 ) + 16 + 16 = 832
But why IPsec module is listening to UDP not TCP? this is an internal connection?


Thank you.
Regards,Hossein
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