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New Member

solution for IP VPN failover on MPLS VPN in single router

we have 3 location, all 3 is connected through L3 MPLS VPN , now we are planing to setup IPVPN for fail over but its not working in 2 location;s could u help regarding the same,

After L3 MPLS link goes down IPVPN get up but same was not happen , we have create tunnel and set matrix on each ip route.

11 REPLIES
New Member

Re: solution for IP VPN failover on MPLS VPN in single router

Could you post your configs and tell us exactly what is not working?

New Member

Re: solution for IP VPN failover on MPLS VPN in single router

Sir,

Configurations are as attached. We are

having MPLS/VPN from one ISP (Reliance) and

IPVPN from other (Sify) both terminated on

Cisco 2821 at both locations (Chakan and Auranagbad in India). Reliance is

primary link i.e. we want link from Sify

should work when Reliance link is down.

But Sify is telling to switch of Reliance

customer premise equipment whenever sify is

required. This will disconnect our other

location (apart from above two) which are connected only through Reliance.

New Member

Re: solution for IP VPN failover on MPLS VPN in single router

Are you able to ping the tunnel interfaces on the tunnels?

Do you plan on sticking with static routes? Using static routes, particularly when you 2 dynamic networks as your transit networks(MPLS and Internet VPN) could lead to a lot of problems. One clear problem you could experience is if the serial interface stays up but isn't passing traffic the static route will remain up thus blackholing traffic.

You really should look to set up some sort of routing protocol.

I also see that Tun0 on your 2nd router configuration is not set up as an IPIP tunnel but rather a GRE. Is that correct?

New Member

Re: solution for IP VPN failover on MPLS VPN in single router

Sir,

Can you help us in setting up dynamic routing

on our routers?

New Member

Re: solution for IP VPN failover on MPLS VPN in single router

Well I can certainly help on the tunnel side.

The problem you are going to have is on the MPLS side. Since it is a Layer 3 MPLS cloud you will need to have your carrier exchange routing information OR you will need to set up tunnels on the MPLS side as well to avoid that.

The easiest routing protocol to implement is EIGRP.

Which interface is your peering interface with your MPLS cloud?

To turn up EIGRP just enter

router EIGRP 1

network

no auto-summary

New Member

Re: solution for IP VPN failover on MPLS VPN in single router

we have done the activity as you said but problem is not solve

Re: solution for IP VPN failover on MPLS VPN in single router

Hi

Do change the routes as mentioned below and check..

ip route 124.7.0.0 255.255.0.0 221.134.86.101

ip route 124.30.0.0 255.255.0.0 221.134.86.101

Also you dont have a routes for 192.168.5.0/23.0 via your serial.

Only the below routes via tunnel is available..

ip route 192.168.5.0 255.255.255.0 Tunnel0 20

ip route 192.168.23.0 255.255.255.0 Tunnel2 20

You dont have routes for 192.168.10.0/11.0/12.0/14.0 pointing towards your tunnel interface..

Not under your tunnel interface..

do throw more clarity on subnets being used and also a small topological diagram representing your setup.

regds

New Member

Re: solution for IP VPN failover on MPLS VPN in single router

Dear Sir,

Yes we have route only for 192.168.5.x series coz, we don;t want pass all ip through SIFY

ip route 192.168.5.0 255.255.255.0 Tunnel0 20

ip route 192.168.23.0 255.255.255.0 Tunnel2 20

also i will confirm after adding the route

New Member

Re: solution for IP VPN failover on MPLS VPN in single router

Dear sir

We have added the routes as you said but it's not working.

One more things is that it is also not woking through PBR.

so pls tell some solution for this

Re: solution for IP VPN failover on MPLS VPN in single router

Hi

Can you post the config after you have done the modifications ?

regds

New Member

Re: solution for IP VPN failover on MPLS VPN in single router

Yes, I can able to ping both tunnel.

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