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Inter VLAN Routing Issue

SHIBI V DEV
Level 1
Level 1

Hi Guys,

    We have two Separate Gateways for Data and Voice , and we have connected these two routesrs in Respective VLANs, Both network is working but there is no communication between DATA VLAN and VOICE VLAN. When we trace from DATA network it is going to DATA router and to Cloud because PCs gateway is Router.But if we change the PC gateway to DATA VLAN ip(10.20.116.10) it will ping to VOICE VLAN but i can not reach internet from that PC. So i think we need to change all PC gateway to  Switch(10.20.116.10) ,but from switch how we can route the internet traffic to DATA router  and How the connectivity and interface configuration should be in the Switch to router,

So that PCs can access the Call Manager in the VOICE VLAN and internet through DATA Network

     I would be grateful in anybody could find solution for this. I am attaching the diagram below

If you require furthe information ,Let me know.

Network.jpg                  

With Regards

Dev

9 Replies 9

Richard Burts
Hall of Fame
Hall of Fame

Dev

As currently configured it looks like each router has only a single interface to a single vlan. If you want devices to be able to access both the Call Manager in the Voice vlan and access the Internet then the Data router needs to have two interfaces, the existing interface to the data vlan and also an interface in the Voice vlan. This would allow the router to route traffic between the vlans.

HTH

Rick

HTH

Rick

Hi Richard,

              There is no interface free in Data Router.Can we route from Switch itself by making Switch IP as gateway

lauxtobias1
Level 1
Level 1

Hi Dev,

there is the possiblity to configure one port as a trunk link with both vlans and connect this port to the router. Afterwards you have to configure 2 subinterfaces on the router interface which you connected to. Each subinterface has to be tagged with one vlan and with the gateway address. Then you can create the routing entries on the router.

Here you can find some help from cisco

http://www.cisco.com/en/US/tech/tk389/tk815/technologies_configuration_example09186a00800949fd.shtml

If you have any further questions or trouble with the manual, just ask

Hi Tobias,

    Thanks for your reply,

In the DATA router now we can not do anything.It is managed by MPLS providers, So we are thinking from the Switch Side. Can we route these TWO VLAN from Switch, Please advice

Regards

Dev

mahmoodmkl
Level 7
Level 7

Hi
Can we know the model of the switch
If it is 3560 or above u can configure svi for respective vlans and configure a default route to the router


Sent from Cisco Technical Support Android App

Hi Mahmood,

               Switch is 3750X L3, but when we give SVi as gateway PC is not reaching internet.

mahmoodmkl
Level 7
Level 7

Hi
Have u configured a default route on the switch pointing to router



Sent from Cisco Technical Support Android App

This switch should be able to route between the vlans. The drawing also shows a router for the voice vlan. If there are difficulties using the switch then the Voice router should be able to be configured to route between the vlans.

But the simple solution would be to configure a layer 3 interface for each vlan on the switch and have the switch route between the vlans.

HTH

Rick

HTH

Rick

SHIBI V DEV
Level 1
Level 1

Hi Guys,

                   I got Solution for this,  I have enbled trunking between Core Switch and Voice router and allowed both VLANs through the trunk and now i am able to reach Voice VLAN from DATA VLAN.

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