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Community Member

routing

If I have 2 sites. 1 router on the remote site has say an ip address of 10.1.1.1/24 and the serial is ip unnumbered, and the main site has a router with its Wan ip on the same subnet, would the router on the main site need a route on it pointing to the remote site, even though its wan port is on the same network ?

6 REPLIES
Community Member

Re: routing

Hi,

If the subnet and mask are same, then it should as directly connected.

HTH,

Thanks,

Vijay

Community Member

Re: routing

Would this be an ok or right way to do it ?, and so from the main site to the remote site, I dont need any routes ?

Re: routing

Hi Carl

The better/general recomm would be using a /30 ip for the WAN conenctivity and make use of seperate /24 in ur local lans on both the sides.

I feel tht would be easier for troubleshooting and for operational purpose..

if u really dont have any choice in moving to the best practice then better to stay out with the current scenario..

regds

Re: routing

Well I do not think it would work.

Assuming this topology:

(e0)R1(s0) - (s0)R2(e0)

with

R1: e0 10.1.1.254/24 and s0 ip unnumbered e0

R2: s0 10.1.1.1/24

How would R1 find the way to R2 without additional static route pointing to R2? It would not.

So the better choice is f.e.

R1 e0 10.1.1.1/24 and s0 10.1.2.1/30

R2 e0 10.1.3.1/24 and s0 10.1.2.2/30

plus either static or dynamic routing on R1 and R2.

Hope this helps

Martin

Community Member

Re: routing

if I did use dynamic routing would I need to advertise both addresses on each router ?

Re: routing

Hi

You need to advertise the networks/address(interfaces) which u require to be advertised to the peers or to be included in the routing process.

regds

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