[Users] nathelper and flag 2

Hi, Today I found a UAC which is *not* located behind NAT (public IP 1.2.3.4) and sends this Via-Header, which seems perfectly valid according to RFC3261: SIP/2.0/UDP VINNASUP06C:5060;maddr=1.2.3.4;branch=z9hG4bK-2198d2 I used to check for nated clients using nat_uac_test("3"), which detects NAT in this case, because the host-part doesn't match the received-address. So is the test-flag "2" useless, since the host-part can be "hostname / IPv4address / IPv6reference", or should this particular test be extended to also check for the maddr-parameter? In the meanwhile, I've changed my nat-test to "17" for only testing Contact and Via-Port instead of Contact and Via-Address, but it's still not optimal. Any opinions on this? Andreas This e-mail is confidential and may well also be legally privileged. If you have received it in error, you are on notice of its status. Please notify us immediately by reply e-mail and then delete this message from your system. Please do not copy it or use it for any purposes, or disclose its contents to any other person: to do so could be a breach of confidence. Thank you for your cooperation.