[OpenSIPS-Users] In opensips config I wanted to match a source IP in a CIDR range .

[Alexey]

Moreover, you can filter requests using plain text files
consisting of pairs (e.g. uri - from address) and filter
REGISTERs/INVITEs this way [1] , [2] , [3] .

And if you need some real-world examples,
you may have a look at these erticles either [4] , [5] .


[1] https://opensips.org/docs/modules/3.4.x/permissions.html#sec-call-routing
[2] https://opensips.org/docs/modules/3.4.x/permissions.html#sec-registration-permissions
[2] https://opensips.org/docs/modules/3.4.x/permissions.html#sec-uri-permissions

[4] https://alexeyka.zantsev.com/?p=1109
[5] https://alexeyka.zantsev.com/?p=1348

-- 
best regards, Alexey
https://alexeyka.zantsev.com/