SCN trunk between LAN1 and LAN2 interfaces 1

[GuzaPasha]

Is it possible to set scn between two ipo that are connected with LAN1(central ipo) and LAN2(remote ipo) interfaces? I have trunk in service and scn up on system status, but there is no call between sites. There is no firewall. Has anyone set this successfully?

Thanks in advance,
Slobodan

 

[amriddle01]

Yes, it makes no difference what port you use, you have something else wrong (apart from the fact you SHOULD have firewalls in there)

 

[GuzaPasha]

Hi amriddle01,
Thank you for your response. Where I'm wrong then? It should be easy.

Central office
LAN1 172.16.192.5, Mask 255.255.0.0
IP route:
IP Address - IP Mask - Gateway - Destination
0.0.0.0 - 0.0.0.0 - 172.16.0.10 - LAN1
H323 scn trunk - Voip settings - Gateway IP Address - 192.168.102.5

Remote office
LAN1 10.10.102.5, Mask 255.255.255.0
LAN2 192.168.102.5, Mask 255.255.255.0
IP route:
IP Address - IP Mask - Gateway - Destination
0.0.0.0 - 0.0.0.0 - 192.168.102.10 - LAN2
10.10.102.1 - 255.255.255.0 - 10.10.102.5 - LAN1
H323 scn trunk - Voip settings - Gateway IP Address - 172.16.192.5

Trunk is in service, scn up. Should I set something else?

 

[amriddle01]

And how does traffic get between those 2 sites? Are they directly connected or separated by the internet?

 

[GuzaPasha]

It is separated by the internet, IPSEC tunnel.

 

[amriddle01]

IPSEC tunnel means routers with firewalls, look there

 

[GuzaPasha]

OK amriddle01, I'll check with customer IT who maintains networks. Thanks a lot for help.

 

[GuzaPasha]

Hi amriddle01,

I have to ask you again for help. Customer has cisco ruiters 2901, NAT, access lists. SCN is up, trunk is in service. When phone (2401) from remote office try to make call to central office (1150):

323856226mS CMLineTx: v=120
CMSetup
Line: type=IPLine 120 Call: lid=0 id=1197 in=0
Called[1150] Type=Default (100) Reason=CMDRdirect SndComp Calling[2401] Type=Internal Plan=Default
BC: CMTC=Speech CMTM=Circuit CMTR=64 CMST=Default CMU1=ALaw
IE CMIERespondingPartyName (228)(Type=CMNameDefault) name=Office
IE CMIERespondingPartyKName (229)(Type=CMNameDefault) name=Office
IE CMIERespondingPartyNumber (230)(P:100 S:100 T:101 N:100 R:4) number=2401
IE CMIEDeviceDetail (231) LOCALE=eng HW=15 VER=9 class=CMDeviceH323Phone type=110 number=8000 channel=0 features=0x10000420 rx_gain=32 tx_gain=32 ep_callid=1195 ipaddr=192.168.102.5 apps=0 loc=0 em_loc=0 features2=0x0
IE CMIECalledPartyName (224)(Type=CMNameDefault) name=Dragana Z
IE CMIECalledPartyKName (225)(Type=CMNameDefault) name=Dragana Zivanovic
IE CMIECallingPartyName (110)(Type=CMNameDefault) name=Office
IE CMIECallingPartyKName (226)(Type=CMNameDefault) name=Office
IE CMIEMohSourceId (247) MOH Source = 255
IE CMIESupplementaryService (3)
Network Facility Extension
sourceEntity: 0
destinationEntity: 0
Interpretation APDU
discardAnyUnrecognisedInvokePdu
CallingName.Invoke.CodePageUtf8String
invokeId 14630
user 'Office' presentation Allowed
IE CMIEFastStartInfoData (6) 6 item(s)
IE CMIECallSignalChannelData (8) unknown
Timed: 11/05/15 10:25
Locale: eng
323856227mS CD: CALL: 251.1195.0 BState=Idle Cut=1 Music=0.0 Aend="Office(2401)" (0.0) Bend="Dragana Z(1150)" [Line 120] (0.0) CalledNum=1150 (Dragana Z) CallingNum=2401 (Office) Internal=0 Time=3138 AState=Dialled
323856227mS CD2: CALL:S 251.1195.0,0.1196.0,8,0,1,0,0,0,Office(2401),,Line 120,0.0,0.0,100.100,1150,100.101,2401,,,100,1150,100,,0,16,0,1,0.0,,,Dragana Z,,Dragana Z,,0,3138,0,0,0,0,eng,,0,,0,0,0,0,,85,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
323856229mS H323Evt: v=0 stacknum=120 State, new=NullState, old=NullState id=-1
323856231mS H323Evt: v=0 stacknum=120 State, new=Initiated, old=NullState id=1197
323856231mS H323Tx: 9 dst=172.16.192.5:1720
H323 Pcol=08(Q931) Reflen=2 ref=0001(Remote)
Message Type = Setup
ForwardLCParameters [G711_ALAW64K (frames=20)] H2250 SID=01: RTP=192.168.102.5(49152) , RTCP=192.168.102.5(49153) ,
ReverseLCParameters [G711_ALAW64K (frames=20)] H2250 SID=01: RTP=192.168.102.5(49152) , RTCP=192.168.102.5(49153) ,
ForwardLCParameters [G711_ULAW64K (frames=20)] H2250 SID=01: RTP=192.168.102.5(49152) , RTCP=192.168.102.5(49153) ,
ReverseLCParameters [G711_ULAW64K (frames=20)] H2250 SID=01: RTP=192.168.102.5(49152) , RTCP=192.168.102.5(49153) ,
ForwardLCParameters [G729_A (frames=2)] H2250 SID=01: RTP=192.168.102.5(49152) , RTCP=192.168.102.5(49153) ,
ReverseLCParameters [G729_A (frames=2)] H2250 SID=01: RTP=192.168.102.5(49152) , RTCP=192.168.102.5(49153) ,

323856723mS SCN Ctrl Tx: PropagateBLF to 172.16.192.5 length=25
323858208mS SCN Ctrl Rx: Process config from 172.16.192.5: length=951
323858212mS PRN: Config Write Wake Up
323858521mS H323Evt: v=0 stacknum=120 State, new=NullState, old=Initiated id=1197
323858521mS H323Evt: Shared tcp socket for line 120 disconnected
323858522mS CMCallPkt: v=0
CMReleaseComp
Line: type=IPLine 120 Call: lid=0 id=1197 in=0
Cause=38, Network out of order
323858522mS CMLineRx: v=120
CMReleaseComp
Line: type=IPLine 120 Call: lid=0 id=1197 in=0
Cause=38, Network out of order

These are errors:
- Shared tcp socket for line 120 disconnected
- Cause=38, Network out of order

I don't know if this is enough trace... If there is something special that should be set on the router when using NAT?
Should it be allowed in access list addresses 10.10.102.x?

Thanks in advance,

 

[nnaarrnn]

Why such different subnets at each site?

This stinks of a routing issue to me.

 

[sstevancevic]

This was a network issue. Customer used wireshark and found a problem in proxy server.

 

[nnaarrnn]

Star for posting the resolution.

They IPO traffic should bypass any proxy server.