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Calling across SCN is UNOBTAINABLE 3

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ipandy

ipandy

Technical User
Dec 9, 2010
30
US
This is a new install of an SCN with 2 IP500's and 1 IP500v2. I have created the H323 lines between sites, and set IP Routes as well. I also created short codes to aid in dialing but still getting UNOBTAINABLE. Here is a brief config of the sites:

Site A: LAN1 Settings - IP=172.16.203.197, Mask=255.255.255.192; H323 Line - Line Number=80, Outgoing ID=80, Channels(#, Outgoing, Voice)=4, Gateway is 172.17.4.138, Allow Direct Media Path is checked. H323 Line - Line Number=81, Outgoing ID=81, Channels(#, Outgoing, Voice)=4, Gateway is 172.16.202.202, Allow Direct Media Path is checked. IP Route - IP Address=0.0.0.0, IP Mask=0.0.0.0, Gateway=172.16.203.197. Short Code - Code=1XX, Feature=Dial, Telephone #=., Line Group=80, Code=3XX, Feature=Dial, Telephone #=., Line Group=81.

Site B: LAN1 Settings - IP=172.16.202.202, Mask=255.255.255.192; H323 Line - Line Number=90, Outgoing ID=90, Channels(#, Outgoing, Voice)=4, Gateway is 172.17.4.138, Allow Direct Media Path is checked. H323 Line - Line Number=91, Outgoing ID=91, Channels(#, Outgoing, Voice)=4, Gateway is 172.16.203.197, Allow Direct Media Path is checked. IP Route - IP Address=0.0.0.0, IP Mask=0.0.0.0, Gateway=172.16.202.202. Short Code - Code=1XX, Feature=Dial, Telephone #=., Line Group=90, Code=2XX, Feature=Dial, Telephone #=., Line Group=91.

Site C: LAN1 Settings - IP=172.17.4.138, Mask=255.255.255.192; H323 Line - Line Number=70, Outgoing ID=70, Channels(#, Outgoing, Voice)=8, Gateway is 172.16.203.197, Allow Direct Media Path is checked. H323 Line - Line Number=71, Outgoing ID=71, Channels(#, Outgoing, Voice)=8, Gateway is 172.16.202.202, Allow Direct Media Path is checked. IP Route - IP Address=0.0.0.0, IP Mask=0.0.0.0, Gateway=172.17.4.138. Short Code - Code=2XX, Feature=Dial, Telephone #=., Line Group=70, Code=3XX, Feature=Dial, Telephone #=., Line Group=71.

IT Dept says they have all ports open on routers. Anyone have an idea. Been banging my head for a while.
 
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Basic network fail I think, .138 (system) and .197 (GW) are in different subnets when using a .192 mask :)

Network.PNG




"No problem monkey socks
 
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Your IP routes are incorrect. Gateway address is the same as your IPO's IP. That won't work.

Shortcodes are not needed in a SCN, they will exchange directories as soon as SCN comes up.
 
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Sorry .138 (GW) and .197 (system)...but still the same answer :)



"No problem monkey socks
 
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Yeah, that post is confusing but there is either allsorts wrong with that network or you have confused your addresses when posting :)





"No problem monkey socks
 
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To clarify things, I copy pasted and cleaned up. Removed the shortcodes -> not needed.

Again, gateway addresses in IP routes are the same as the IPO's IP. That will never route a single bit :p

Site A: LAN1 Settings - IP=172.16.203.197, Mask=255.255.255.192;
H323 Line - Line Number=80, Outgoing ID=80, Channels(#, Outgoing, Voice)=4, Gateway is 172.17.4.138, Allow Direct Media Path is checked.
H323 Line - Line Number=81, Outgoing ID=81, Channels(#, Outgoing, Voice)=4, Gateway is 172.16.202.202, Allow Direct Media Path is checked.
IP Route - IP Address=0.0.0.0, IP Mask=0.0.0.0, Gateway=172.16.203.197.

Site B: LAN1 Settings - IP=172.16.202.202, Mask=255.255.255.192;
H323 Line - Line Number=90, Outgoing ID=90, Channels(#, Outgoing, Voice)=4, Gateway is 172.17.4.138, Allow Direct Media Path is checked.
H323 Line - Line Number=91, Outgoing ID=91, Channels(#, Outgoing, Voice)=4, Gateway is 172.16.203.197, Allow Direct Media Path is checked.
IP Route - IP Address=0.0.0.0, IP Mask=0.0.0.0, Gateway=172.16.202.202.

Site C: LAN1 Settings - IP=172.17.4.138, Mask=255.255.255.192;
H323 Line - Line Number=70, Outgoing ID=70, Channels(#, Outgoing, Voice)=8, Gateway is 172.16.203.197, Allow Direct Media Path is checked.
H323 Line - Line Number=71, Outgoing ID=71, Channels(#, Outgoing, Voice)=8, Gateway is 172.16.202.202, Allow Direct Media Path is checked.
IP Route - IP Address=0.0.0.0, IP Mask=0.0.0.0, Gateway=172.17.4.138.
 
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NLPeterK is right.

Your IP Routes are incorrect.
IP=172.16.203.197, Mask=255.255.255.192
IP Route - IP Address=0.0.0.0, IP Mask=0.0.0.0, Gateway=172.16.203.197.

The gateway here should be pointing at the router which knows about the other subnets.
 
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Just to add to the fun: you don't really need the cross contamination... Just take A as center and connect it to B and C. No need for a separate (expensive) connection between B and C.
 
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In the process of making the changes as per your suggestions. Once up and running Stars to all.
 
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Got it up and running. Problem due to wrong IP address in IP route. Too many IP's going through my head. Soon as I figure out stars/thanks you will get them. Thanks for the help.
 
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