[Spce-user] wrong registration with contact from an internal IP address

[Tóth Csaba]

Dear List, SipWise Team,

how can i disabled registrations what try to register a contact into an
internal IP address range?

For example this is a contact what a subscriber registered with:
"sip:361*******@10.102.2.1;transport=UDP;user=phone"

How can i disable the possibility to these kind of registrations not be
able to register, or "maybe" (?) better the system do a replace on the
invalid IP address to the real external IP address it gots the
registration from? Our old call distribution system does this latter
mechanism, i am not so satisfied with it, i think the first method (a
decline on the registration) would be better.

Thanks in advance!
Csaba Tóth