Overlapping networks

[craigwoody]

We have an existing vlan of 10.10.0.0 /16 with a vlan interface of 10.10.0.1

Our provider has issued us an IP of 10.10.x.x /30 for a SIP trunk.  Lets say it is 10.10.15.45. Our firewall's internal IP is 10.1.96.1.

Would adding a route of "ip route 10.10.15.45 255.255.255.255 10.1.96.1" direct SIP traffic to the trunk correctly? 

[Reza Sharifi]

If the SIP trunk is connecting to your internal vlan which is 10.10.0.0/16 than you don't need any static route as everything falls under 10.10.0.0/16 network.

Does the provider router directly connected to your access switch or you have you own voice gateway and that connects to the provider's router?

HTH

[Ganesh Hariharan]

Hi,

Is the provider connectivity coming directly on firewall or on any router.If I understand your setup..

Internal VLAN 10.10.0.0/16 -->(10.1.96.1)Firewall--> Router or not --> Service Provider.

As suggested by Reza, if the SIP trunk traffic is connecting internal LAN , you don't want any route .If it require in outside towards router then you may put a static route for that destination towards provider.

Hope it Helps..

-GI