Question

vlan over vpn

Asked by: ComTechAS

Se network draw: http://comtech.name/tlfct.jpg
How can I make my phone reach the vlan for phone?
I've tried add a route in my home ASA for the 10.1.1.0/24 network, but no luck.
Culd there be some security settings in the UC520, that don't allow 192.168.192.0/24 connect to 10.1.1.0/24?

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Asked On
2009-06-11 at 13:31:10ID24484655
Topics

Network Routers

,

Voice Over IP

Participating Experts
2
Points
500
Comments
7

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Answers

 

by: kind4mePosted on 2009-06-11 at 13:47:22ID: 24606711

You would need a site to site vpn (you pic doesn't say what that link is)
Cisco phone would have to have the gateway of your router.  
The routing on the lan side would have to be configured.
You would need to ensure there where no rules on the vpn regarding traffic and that the phone vlan would accept traffic from the von vlan

I am not sure, but you may have to configure the PBX to tell it that phones with that IP range are legit.

Why not just get a voip card for your pbx (should be about 500$) and give it an external address, hook it up to a internet connection.  Then the cisco phone could connect to the external pbx card?

 

by: ComTechASPosted on 2009-06-11 at 13:49:22ID: 24606731

Hello, the link is site to site.
I will check into it, and leave feedback later on.

 

by: cat6509Posted on 2009-06-11 at 14:15:07ID: 24606960

you have DHCP option 150 set for the CM server right ?

 

by: ComTechASPosted on 2009-06-12 at 01:16:20ID: 24610154

Yes, but the problem is that i cannot reach 10.1.1.0/24 from the other site.
Maybe i could try set the option to the 10.192.12.3 address?

 

by: cat6509Posted on 2009-06-12 at 04:30:39ID: 24611073

can you show us your ASA configuration (cleaned up for public viewing i.e. change external IP's to x.x.x.lastoctet no passwords or vpn keys etc)

The next place to look is to see if your source IP address is getting NAT'd when you don't want it to be.

 

by: kind4mePosted on 2009-06-12 at 06:11:40ID: 24611815

It sounds like there is no route on the 12 network to the 1 network.  I lock my vpn down to allow access to only certain vlans and I cannot see a reason to allow any VPN traffic to my voice vlan on my network.  Your sys admins may have the same thought.  Are you sure that you don't have an external IP for VOIP that you can use?

 

by: ComTechASPosted on 2009-06-15 at 02:09:07ID: 24627133

Maybe I can, would this be as easy as forward some ports to the Cisco UC520?

20120131-EE-VQP-002

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