General • VOIP: wireshark “incorrect timestamp” on very specific condition (incoming call, first 1-6 seconds)

“Packet”,“Sequence”,“Delta (ms)”,“Jitter (ms)”,“Skew”,“Bandwidth”,“Marker”,“Status”“192.168.172.50:17900 → 5.178.95.245:10148 (0x3588f93e)”7,57849,0,0,0,1.6,“”,“OK”------------ REMOVED PACKETS302,58138,1022.5839999999989,0.20648176350956307,-48.82299999999941,1.6,“SET”,“OK”303,58139,17.085000000000946,0.3757641532901562,-45.90800000000036,3.2,“”,“OK”------------ PROBLEM STARTS HERE306,58140,33.082000000000335,427.54490389370955,-6880.990000000001,4.8,“SET”,“Incorrect timestamp”307,58141,33.40599999999904,826.7862224003527,-13696.396,6.4,“”,“Incorrect timestamp”308,58142,33.8799999999992,1199.8545835003306,-20492.275999999998,8,“”,“Incorrect timestamp”309,58143,34.159999999999854,1548.3736720315599,-27268.435999999998,9.6,“”,“Incorrect timestamp”310,58144,34.45999999999913,9487178,-2060349.8680000002,80,“”,“Incorrect timestamp”------------ REMOVED PACKETS933,58479,6005.735999999999,6027.663245192294,-2066377.6040000003,80,“”,“Incorrect timestamp”935,58480,6025.7029999999995,6027.665729867776,-2072405.3070000003,80,“”,“Incorrect timestamp”937,58481,6045.706,6027.66824675104,-2078433.0130000003,81.6,“”,“Wrong sequence number”------------ PROBLEM FINISH HERE, FROM NOW ON EVERYTHING IS OK939,58482,20.16699999999946,5650.9494188291,-2078433.1800000002,80,“”,“OK”941,58483,19.597999999999956,5297.7902051522815,-2078432.7780000004,81.6,“”,“OK”------------ REMOVED PACKETS

/interface bridgeadd name=bridge-trunk port-cost-mode=short protocol-mode=none vlan-filtering=yes/interface ethernetset [ find default-name=ether1 ] comment=WANset [ find default-name=sfp-sfpplus1 ] comment=SW-UFFICIO/interface vlanadd interface=bridge-trunk name=VLAN170-LAN vlan-id=170add interface=bridge-trunk name=VLAN172-VOIP vlan-id=172add interface=bridge-trunk name=VLAN175-MNGT vlan-id=175/interface listadd name=VLAN-MNGTadd name=VLAN-LANadd name=VLAN-VOIPadd name=WAN/ip pooladd name=VPN170_POOL ranges=192.168.170.128-192.168.170.199add name=VPN172_POOL ranges=192.168.172.128-192.168.172.199add name=VPN175_POOL ranges=192.168.175.128-192.168.175.199/ip dhcp-serveradd address-pool=VPN170_POOL interface=VLAN170-LAN name=DHCP-VLAN170-LANadd address-pool=VPN172_POOL interface=VLAN172-VOIP name=DHCP-VLAN172-VOIPadd address-pool=VPN175_POOL interface=VLAN175-MNGT name=DHCP-VLAN175-MNGT/ppp profile/queue treeadd limit-at=300M max-limit=300M name=upload parent=ether1 priority=1 queue=defaultadd limit-at=740M max-limit=740M name=download parent=bridge-trunk priority=1queue=defaultadd comment=RTP_88K_PER_TERMINALE limit-at=360k max-limit=360k name=upload_pri_1_rtp packet-mark=rtp-packet parent=upload priority=1 queue=defaultadd comment=SIP_65K_PER_TERMINALE limit-at=200k max-limit=200k name=upload_pri_1_sip packet-mark=sip-packet parent=upload priority=1 queue=defaultadd limit-at=299M max-limit=299M name=upload_pri_8 packet-mark=no-markparent=upload queue=defaultadd comment=RTP_88K_PER_TERMINALE limit-at=360k max-limit=360k name=download_pri_1_rtp packet-mark=rtp-packet parent=download priority=1queue=defaultadd comment=SIP_65K_PER_TERMINALE limit-at=200k max-limit=200k name=download_pri_1_sip packet-mark=sip-packet parent=download priority=1queue=defaultadd limit-at=739M max-limit=739M name=download_pri_8 packet-mark=no-markparent=download queue=default/interface bridge portadd bridge=bridge-trunk frame-types=admit-only-vlan-tagged interface=sfp-sfpplus1 internal-path-cost=10 path-cost=10/interface bridge vlanadd bridge=bridge-trunk tagged=sfp-sfpplus1 vlan-ids=170add bridge=bridge-trunk tagged=sfp-sfpplus1 vlan-ids=172add bridge=bridge-trunk tagged=sfp-sfpplus1,bridge-trunk vlan-ids=175/interface list memberadd interface=ether1 list=WANadd interface=VLAN175-MNGT list=VLAN-MNGTadd interface=VLAN170-LAN list=VLAN-LANadd interface=VLAN172-VOIP list=VLAN-VOIPadd address=192.168.172.1/24 interface=VLAN172-VOIP network=192.168.172.0add address=192.168.175.1/24 interface=VLAN175-MNGT network=192.168.175.0add address=192.168.170.1/24 interface=VLAN170-LAN network=192.168.170.0add address=192.168.1.2/30 comment=WAN interface=ether1 network=192.168.1.0/ip dhcp-server networkadd address=192.168.170.0/24 dns-server=192.168.170.240,192.168.170.241gateway=192.168.170.1add address=192.168.172.0/24 dns-server=192.168.172.1 gateway=192.168.172.1add address=192.168.175.0/24 dns-server=192.168.175.1 gateway=192.168.175.1/ip dnsset allow-remote-requests=yes servers=8.8.8.8/ip firewall address-listadd address=192.168.170.0/24 comment=LAN list=CAMPEGGIO_170add address=192.168.175.0/24 comment=MNGT list=CAMPEGGIO_175add address=192.168.172.0/24 comment=VOIP list=CAMPEGGIO_172add address=192.168.170.0/24 list=VLANadd address=192.168.172.0/24 list=VLANadd address=192.168.175.0/24 list=VLAN/ip firewall filteradd action=accept chain=forward comment=“FORWARD Allow Estab & Related”connection-state=established,relatedadd action=accept chain=input comment=“INPUT Allow Estab & Related”connection-state=established,relatedadd action=drop chain=forward comment=“FORWARD DROP INVALID”connection-state=invalid log=yes log-prefix=forward-drop-invalidadd action=drop chain=input comment=“INPUT DROP INVALID” connection-state=invalid log=yes log-prefix=input-drop-invalidadd action=accept chain=input comment=“INPUT Allow MANAGEMENT VLAN”connection-state=new in-interface-list=VLAN-MNGTadd action=accept chain=forward comment=“FORWARD ALLOW MANAGEMENT VLAN”connection-state=new dst-address-list=VLAN in-interface=VLAN175-MNGTadd action=accept chain=forward comment=“ABILITA INTERNET SU VLANS”connection-state=new out-interface-list=WAN src-address-list=VLANadd action=accept chain=input comment=“INPUT ALLOW DNS IN VLAN”connection-state=new src-address-list=VLANadd action=drop chain=forward comment=“FORWARD DROP ALL” log=yes log-prefix=forward-drop-alladd action=drop chain=input comment=“INPUT DROP ALL” log-prefix=input-drop-all/ip firewall mangleadd action=mark-connection chain=forward comment=SIP connection-state=newdisabled=yes dst-address=192.168.172.50 dst-port=5060new-connection-mark=sip-connection protocol=udpadd action=mark-connection chain=forward comment=SIP connection-state=newdst-port=5060 new-connection-mark=sip-connection protocol=udpsrc-address=192.168.172.50add action=mark-packet chain=forward comment=SIP connection-mark=sip-connection log=yes log-prefix=sip-packet new-packet-mark=sip-packetadd action=mark-connection chain=forward comment=RTP connection-state=newdisabled=yes dst-address=192.168.172.50 log-prefix=RTP-Connnew-connection-mark=rtp-connection port=10000-20000 protocol=udpadd action=mark-connection chain=forward comment=RTP connection-state=newlog-prefix=RTP-Conn new-connection-mark=rtp-connection port=10000-20000protocol=udp src-address=192.168.172.50add action=mark-packet chain=forward comment=RTP connection-mark=rtp-connection log=yes log-prefix=rtp-packet new-packet-mark=rtp-packetadd action=change-dscp chain=postrouting comment=DSCP log=yes log-prefix=change-dscp new-dscp=46 out-interface=VLAN172-VOIP packet-mark=rtp-packet/ip firewall natadd action=masquerade chain=srcnat out-interface-list=WAN/ip routeadd disabled=no distance=1 dst-address=0.0.0.0/0 gateway=192.168.1.1pref-src=“” routing-table=main scope=30 suppress-hw-offload=notarget-scope=10