No Rtp After Dns Query

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Asterisk Users 2 Comments

hi,

i have strange problem with no rtp packets from asterisk after dns query. see pcap below

CentOS6/asterisk 13.9 + chan_sip

172.23.0.3 – asterisk

172.23.5.1/2 – voip phones

any ideas/hints?

1170 25.028206000 172.23.0.3 -> 172.23.5.1 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x334508F6, SeqI318, Time42112256
1171 25.045556000 172.23.5.1 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x643C9869, SeqD68, Timeq6240
1172 25.045629000 172.23.0.3 -> 172.23.5.2 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x3566361, Seq`990, Timeq6240
1173 25.048134000 172.23.5.2 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x8B41FC0A, Seq’4, Time42112421
1174 25.048207000 172.23.0.3 -> 172.23.5.1 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x334508F6, SeqI319, Time42112416
1175 25.065362000 172.23.5.1 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x643C9869, SeqD69, Timeq6400
1176 25.065441000 172.23.0.3 -> 172.23.5.2 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x3566361, Seq`991, Timeq6400
1177 25.068138000 172.23.5.2 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x8B41FC0A, Seq’5, Time42112581
1178 25.068214000 172.23.0.3 -> 172.23.5.1 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x334508F6, SeqI320, Time42112576
1179 25.085427000 172.23.5.1 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x643C9869, SeqD70, Timeq6560
1180 25.085500000 172.23.0.3 -> 172.23.5.2 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x3566361, Seq`992, Timeq6560
1181 25.088133000 172.23.5.2 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x8B41FC0A, Seq’6, Time42112741
1182 25.088207000 172.23.0.3 -> 172.23.5.1 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x334508F6, SeqI321, Time42112736
1183 25.099395000 172.23.5.2 -> 172.23.0.3 RTCP 94 Sender Report
1184 25.099569000 172.23.0.3 -> 172.16.1.20 DNS 78 Standard query
0xd853 A pbx.somewhere.com
1185 25.099591000 172.23.0.3 -> 172.16.1.20 DNS 78 Standard query
0xeb9f AAAA pbx.somewhere.com
1186 25.100211000 172.16.1.20 -> 172.23.0.3 DNS 94 Standard query response 0xd853 A 172.23.0.3
1187 25.105456000 172.23.5.1 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x643C9869, SeqD71, Timeq6720
1188 25.108153000 172.23.5.2 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x8B41FC0A, Seq’7, Time42112901
1189 25.125115000 172.23.5.1 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x643C9869, SeqD72, Timeq6880
1190 25.128169000 172.23.5.2 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x8B41FC0A, Seq’8, Time42113061
1191 25.145232000 172.23.5.1 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x643C9869, SeqD73, Timeq7040
1192 25.148169000 172.23.5.2 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x8B41FC0A, Seq’9, Time42113221
1193 25.165214000 172.23.5.1 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x643C9869, SeqD74, Timeq7200
1194 25.168169000 172.23.5.2 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x8B41FC0A, Seq(0, Time42113381
1195 25.185212000 172.23.5.1 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x643C9869, SeqD75, Timeq7360
1196 25.188194000 172.23.5.2 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x8B41FC0A, Seq(1, Time42113541
1197 25.205216000 172.23.5.1 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x643C9869, SeqD76, Timeq7520
1198 25.208164000 172.23.5.2 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x8B41FC0A, Seq(2, Time42113701
1199 25.225149000 172.23.5.1 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x643C9869, SeqD77, Timeq7680
1200 25.228177000 172.23.5.2 -> 172.23.0.3 RTP 214 PT=ITU-T G.711
PCMA, SSRC=0x8B41FC0A, Seq(3, Time42113861

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