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VPN over DOCSIS

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Attached there's a picture that i think explains what i mean with the subjet.
i want to do that over the DOCSIS, basicly is comunicate two
LAN that are behind of the CableModems.
Not provide internet to them just comunication between them.

I made a post earlier, but I think that I was not very detailed about it.
So, this time i did a draw of a DOCSIS enviroment from point to point.
to give better explain this time.

Really Hope that someoane can explain this to me.

JBMartinez.

look for L2VPN, you may find useful http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_l2vpn...

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affordable, robust provisioning and monitoring software for DOCSIS networks: dps.cable@gmail.com

The above link did not work for me here is one that should http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_l2vpn_ps2209_TSD_Products_Configuration_Guide_Chapter.html

You will also need this http://www.cablemodem.com/downloads/specs/CM-SP-L2VPN-I03-061222.pdf as it explains what config file changes you need to make to facilitae it.

This appear to be BPI+ plus multiple VLANs in top of it, or am I mistaken? Never used VLANs with CMTSes, the question may appear stupid, but can a VLAN span multiple CMTSeS?