Module: kamailio Branch: master Commit: d87120dfb77d018cdf571cbcf18cf1950ce61987 URL: https://github.com/kamailio/kamailio/commit/d87120dfb77d018cdf571cbcf18cf19… Author: Kamailio Dev <kamailio.dev(a)kamailio.org> Committer: Kamailio Dev <kamailio.dev(a)kamailio.org> Date: 2023-02-13T13:16:18+01:00 modules: readme files regenerated - nathelper ... [skip ci] --- Modified: src/modules/nathelper/README --- Diff: https://github.com/kamailio/kamailio/commit/d87120dfb77d018cdf571cbcf18cf19… Patch: https://github.com/kamailio/kamailio/commit/d87120dfb77d018cdf571cbcf18cf19… --- diff --git a/src/modules/nathelper/README b/src/modules/nathelper/README index 941cee9465..b1edb5d450 100644 --- a/src/modules/nathelper/README +++ b/src/modules/nathelper/README @@ -191,10 +191,10 @@ Chapter 1. Admin Guide save() and should be used for ���REGISTER��� requests. Note: fix_nated_contact() changes the ���Contact��� header, thus it breaks - the RFC. Although usually this is not an issue, it may cause problems + the RFC. Although this is not always an issue, it may cause problems with strict SIP clients. An alternative is to use add_contact_alias() - that together with the handle_ruri_alias() is standards conforming and - also supports reuse of TCP/TLS connections. + (or set_contact_alias()) that together with the handle_ruri_alias() is + standards conforming and also supports reuse of TCP/TLS connections. 2. NAT pinging types @@ -285,12 +285,15 @@ modparam("nathelper", "natping_interval", 10) 4.3. ping_nated_only (integer) If this parameter is set to 1 then only contacts that have the behind - NAT ���nat_bflag��� flag in user location database set will get - SIP-request-based ping. - - If it is 0 and sipping_bflag is not set, then the 4-bytes UDP ping is - sent to all contacts. If it is 0 and sipping_bflag parameter is set, - then SIP-request-based pinging is sent to all contacts. + NAT ���nat_bflag��� flag set in user location records get the NAT ping (the + ���nat_bflag��� is specified via modparam of usrloc module). By default the + ping is done with 4-bytes UDP packet. If sipping_bflag is also set, + then the ping is done with a stateless SIP request (by default: OPTIONS + request). + + If it is 0, then all contacts get a NAT ping, by default being the + 4-bytes UDP packet. If it is 0 and sipping_bflag parameter is set, then + SIP-request-based pinging is sent to all contacts. Default value is 0.