Strange external IP-addr

Discussion in '3CX Phone System - General' started by complex1, Aug 26, 2013.

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  1. complex1

    complex1 Active Member

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    Hi,

    I am running a 3CX v11SP4 without any problems. I can make and receive phone calls.
    Also I make use of 3 different VoIP Providers.

    When a call comes in, regardless by which provider, the Server Activity Log (Verbose mode) starts always with:
    - "Compare IPs: incoming=83.1xx.1xx.1xx; external=210.161.32.1"
    - "IPs do not match!"

    The incoming IP is related to the VoIP Provider but where the external IP-address comes from..., I don’t know.
    The external IP always stay the same and belongs to the “Japan Izumo Cable Vision Co. Ltd.” :O

    Does anybody know how to remove or correct this?

    Thank you.
     
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  2. leejor

    leejor Well-Known Member

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    Has this been happening the entire time you've used V12, on this machine?

    I can only suspect that the IP is on that machine, for some reason. You might want to do a search through the registry for it and find what it is related to. (regedit)
     
  3. craigreilly

    craigreilly Well-Known Member

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    Or perhaps the IP is related to his internet service provider somehow? Is this creating issues? What happens if you block that IP as a Blacklist in 3cx?
     
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  4. complex1

    complex1 Active Member

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    Thanks for the answers.

    Q. How does 3CX “see” a difference between incoming and external IP’s. 3CX checked something, but what?

    @leejor
    I am running v11 not v12.
    I will check the registry for any IP(?)

    @craigreilly
    The difference between IP’s does not create any issues (as far as I know). 3CX is functioning properly.
    The IP in the blacklist does not resolve this.
     
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  5. leejor

    leejor Well-Known Member

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    Oops, sorry, missed that it is version 11.

    Not sure if you are asking how to to this in the registry.
     
  6. complex1

    complex1 Active Member

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    No, thanks.

    I have run a registry check and found nothing.

    I think to restart 3CX and see if I can find something during the startup.
     
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  7. leejor

    leejor Well-Known Member

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    Does this happen on incoming calls from all 3 providers?

    It's funny that both Ping and Tracert, to the IP, dead end
     
  8. complex1

    complex1 Active Member

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    Yes, it happens with 3 VoIP providers: CheapConnect, BudgetPhone and Breezz.

    To make it more complicated: when using a Voip-in number from VoipBuster there is no IP check.

    When created the trunks I used the Generic VoIP Provider as default.

    Here a part of the Server Activity Log (CheapConnect=78.40.244.252)
    Code:
    27-aug-2013 12:03:29.708   [CM503001]: Call(C:39): Incoming call from Line:10008<<061029xxxx to <sip:11@172.17.84.11:5260>
    27-aug-2013 12:03:29.705   Line limit check: Current # of calls for line Lc:10008(@Cheap Connect[<sip:3122379xxxx@sip.cheapconnect.net:5060>]) is 1; limit is 1
    27-aug-2013 12:03:29.705   Blacklist check: number '061029xxxx', list: ''; result = false
    27-aug-2013 12:03:29.705   Dev(15):[sip:3122379xxxx@sip.cheapconnect.net:5060 / 3122379xxxx]: PBX contact is public IP: <sip:3122379xxxx@sip.dyndns.org:5260>
    27-aug-2013 12:03:29.696   Outbound URI is used: sip:78.40.244.252:5060;lr;transport=UDP
    27-aug-2013 12:03:29.696   Dev(15):[sip:3122379xxxx@sip.cheapconnect.net:5060 / 3122379xxxx]: Outbound is overriden with topmost RR: <sip:@78.40.244.252:5060>
    27-aug-2013 12:03:29.696   Dev(15):[sip:3122379xxxx@sip.cheapconnect.net:5060 / 3122379xxxx]: PBX contact is public IP: <sip:3122379xxxx@sip.dyndns.org:5260>
    27-aug-2013 12:03:29.693   [CM503012]: Inbound office hours rule (unnamed) for 10008 forwards to DN:11
    27-aug-2013 12:03:29.693   [Flow] Looking for inbound target: called=3122379xxxx; caller=<sip:061029xxxx@:5060>
    27-aug-2013 12:03:29.693   CallerNameAddr: <sip:061029xxxx;nf=e>
    27-aug-2013 12:03:29.693   Phonebook entry not found for number 061029xxxx
    27-aug-2013 12:03:29.693   Looking for phone number 061029xxxx in tenant's 'default' phonebook
    27-aug-2013 12:03:29.693   No inbound caller ID reformat rule is defined, or it is disabled (0,,,,,)
    27-aug-2013 12:03:29.693   Line 10008 has been updated from DB
    27-aug-2013 12:03:29.693   IPs do not match!
    27-aug-2013 12:03:29.693   Compare IPs: incoming=78.40.244.252; external=210.161.32.1
    27-aug-2013 12:03:29.692   IncomingCall: C:39 from <sip:061029xxxx@78.40.244.252:5060> to <sip:3122379xxxx@sip.dyndns.org:5260>
    27-aug-2013 12:03:29.692   Added leg L:C:39.1[No endpoint yet]
    27-aug-2013 12:03:29.692   UasSession 408961 started
    27-aug-2013 12:03:29.692   Call from <sip:061029xxxx@78.40.244.252>;tag=olbcn4k3jhypty4c.o to <sip:3122379xxxx@78.40.244.252>;tag=065aac14
    27-aug-2013 12:03:29.692   IPs do not match!
    27-aug-2013 12:03:29.692   Compare IPs: incoming=78.40.244.252; external=210.161.32.1
    27-aug-2013 12:03:13.991   Currently active calls [none]
    Voip-in number from VoipBuster
    Code:
    27-aug-2013 12:04:29.238   [CM503001]: Call(C:40): Incoming call from Line:10009<<003161029xxxx to <sip:11@172.17.84.11:5260>
    27-aug-2013 12:04:29.235   Line limit check: Current # of calls for line Lc:10009(@VoipBuster[<sip:name@sip.voipbuster.com:5060>]) is 1; limit is 1
    27-aug-2013 12:04:29.235   Blacklist check: number '003161029xxxx', list: ''; result = false
    27-aug-2013 12:04:29.235   Dev(4):[sip:name@sip.voipbuster.com:5060 / name]: PBX contact is public IP: <sip:name@sip.dyndns.org:5260>
    27-aug-2013 12:04:29.206   Outbound URI is used: sip:name@77.72.169.129:5060
    27-aug-2013 12:04:29.206   Dev(4):[sip:name@sip.voipbuster.com:5060 / name]: PBX contact is public IP: <sip:name@sip.dyndns.org:5260>
    27-aug-2013 12:04:29.203   [CM503012]: Inbound office hours rule (unnamed) for 10009 forwards to DN:11
    27-aug-2013 12:04:29.203   [Flow] Looking for inbound target: called=name; caller=<sip:003161029xxxx@:5060>
    27-aug-2013 12:04:29.203   CallerNameAddr: <sip:003161029xxxx;nf=e>
    27-aug-2013 12:04:29.203   Phonebook entry not found for number 003161029xxxx
    27-aug-2013 12:04:29.203   Looking for phone number 003161029xxxx in tenant's 'default' phonebook
    27-aug-2013 12:04:29.203   No inbound caller ID reformat rule is defined, or it is disabled (0,,,,,)
    27-aug-2013 12:04:29.203   Line 10009 has been updated from DB
    27-aug-2013 12:04:29.202   IncomingCall: C:40 from <sip:003161029xxxx@sip.voipbuster.com:5060> to <sip:name@sip.dyndns.org:5260>
    27-aug-2013 12:04:29.202   Added leg L:C:40.1[No endpoint yet]
    27-aug-2013 12:04:29.202   UasSession 409015 started
    27-aug-2013 12:04:29.202   Call from <sip:003161029xxxx@sip.voipbuster.com:5060>;tag=100313ac51d3607d9f36f6 to <sip:name@sip.dyndns.org:5260>;tag=cd21c906
    27-aug-2013 12:04:15.994   Currently active calls [none]
     
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  9. leejor

    leejor Well-Known Member

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    I only see it on the Cheap Connect call, have you spoken to them about this?

    If they deny knowing anything, then...

    That leaves a couple of possibilities.

    Your ISP has something to do with it, again, probably not.

    You have a device (router, SBC,firewall, etc.), between you and your ISP that has that IP, in it, somewhere.

    Possible?
     
  10. complex1

    complex1 Active Member

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    Hi leejor,

    Thank you for the suggestions, but first I will restart 3CX to see if in the startup sequence “things” are wrong.
    Maybe it will be a little clearer, I hope.

    It happens not only with CheapConnect but also with BudgetPhone and Breezz.
    The CheapConnect call is only as example.

    I am using a DrayTek router (vigor 2130n) between ISP and 3CX server.

    Maybe have 3CX engineers a solution or an explanation for this.

    Very strange…
     
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