[SR-Users] 403 domain not served error in IMS kamailio

Hi, Could any one please help me in this issue ASAP. This is logs from SCSCF. Jun 18 06:28:02 396779d9d4e7 kamailio[1796]: DEBUG: <core> [core/socket_info.c:630]: grep_sock_info(): checking if host==us: 10==10 && [172.17.0.8] == [172.17.0.5] Jun 18 06:28:02 396779d9d4e7 kamailio[1796]: DEBUG: <core> [core/socket_info.c:637]: grep_sock_info(): checking if port 4080 (advertise 0) matches port 5060 Jun 18 06:28:02 396779d9d4e7 kamailio[1796]: DEBUG: <core> [core/name_alias.h:62]: grep_aliases(): matching (0:172.17.0.8:5060) vs. (0: sip.example.com:0) Jun 18 06:28:02 396779d9d4e7 kamailio[1796]: DEBUG: <core> [core/name_alias.h:62]: grep_aliases(): matching (0:172.17.0.8:5060) vs. (0: sip.example.com:5060) Jun 18 06:28:02 396779d9d4e7 kamailio[1796]: DEBUG: <core> [core/name_alias.h:62]: grep_aliases(): matching (0:172.17.0.8:5060) vs. (0: scscf.sip.example.com:4080) Jun 18 06:28:02 396779d9d4e7 kamailio[1796]: DEBUG: <core> [*core/forward.c:423]: check_self(): host (0:172.17.0.8:5060 <http://172.17.0.8:5060>) != me* Jun 18 06:28:02 396779d9d4e7 kamailio[1796]: ERROR: <script>: sip:bob at sip.example.com *Jun 18 06:28:02 396779d9d4e7 kamailio[1796]: ERROR: <script>: Domain not served 403* Jun 18 06:28:02 396779d9d4e7 kamailio[1796]: ERROR: <script>: BYE ( sip:alice@sip.example.com (172.17.0.3:4060) to sip:bob@sip.example.com, -KT6eSWl7Dm77fe5hbNbeiHR2kwBjni0) Jun 18 06:28:02 396779d9d4e7 kamailio[1796]: DEBUG: <core> [core/mem/q_malloc.c:374]: qm_malloc(): qm_malloc(0x7fd1f6db5010, 30) called from core: core/ut.c: as_asciiz(161) scscf.cfg # SIP / UDP listen=udp:172.17.0.5:4080 # SIP / TCP listen=tcp:172.17.0.5:4080 # SIP / TCP/TLS listen=tls:172.17.0.5:4081 #!define NETWORKNAME "sip.example.com" #!define HOSTNAME "scscf.sip.example.com" #!define URI "sip:scscf.sip.example.com:4080" alias=scscf.sip.example.com:4080 alias=sip.example.com:5060 alias=sip.example.com # ENUM-Server to query: