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This commit is contained in:
Brian West 2010-12-14 12:43:51 -06:00
parent 6c6eab8c13
commit 1d668e25ab
1 changed files with 15 additions and 1 deletions
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16
src/mod/endpoints/mod_sofia/sofia.c
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@ -6267,7 +6267,21 @@ void sofia_handle_sip_i_invite(nua_t *nua, sofia_profile_t *profile, nua_handle_
for (x = 0; x < profile->nat_acl_count; x++) {
last_acl = profile->nat_acl[x];
if (!(ok = switch_check_network_list_ip(contact_host, last_acl))) {
/* override the decision to say this is nat because the network_ip is within the acl too */
/* NAT mode double check logic and examples.
Example 1: the contact_host is 192.168.1.100 and the network_ip is also 192.168.1.100 the end point
is most likely behind nat with us so we need to veto that decision to turn on nat processing.
Example 2: the contact_host is 192.168.1.100 and the network_ip is 192.0.2.100 which is a public internet ip
the remote endpoint is likely behind a remote nat traversing the public internet.
This secondary check is here to double check the conclusion of nat settigs to ensure we don't set net
in cases where we don't really need to be doing this.
Why would you want to do this? Well if your FreeSWITCH is behind nat and you want to talk to endpoints behind
remote NAT over the public internet in addition to endpoints behind nat with you. This simplifies that process.
*/
if ((ok = switch_check_network_list_ip(network_ip, last_acl))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG10, "Endpoint is already inside nat with us.\n");
ok = 0;