Point to point config help

anything I don't mind · 6 Dec 2013 at 12:11

We recently had a Virgin Media 100mbit point to point installed to our datacenter at one client. Both sides have a virgin media NTU. My boss said that i can simply patch the port from the NTU to out switches on both sides and the DR side will simply have the same subnet and we just set static ip within the same range as our local subnet.

We also have vfiler at the DR side and they have asked for network configuration and i've never dealt with a point to point before.

I can connect the ntu to the main stack and the network guy from their side said he can give our vfiler an ip in our local subnet. example 10.10.10.56

So then it would look like this, sorry for bad drawing i updated the visio in ms paint at this point, will make a full visio later, once i know what i am doing.

DRZ · 6 Dec 2013 at 13:35

If it is just a point to point Ethernet link then I don't see why you would treat it any differently to any other Ethernet link - if the subnets are the same then you're fine, if it needs to be routed then it needs to be routed. Your diagram shows multiple subnets but no router...

anything I don't mind · 6 Dec 2013 at 14:39

Well for some reason previous admin setup class c address so the 10.10.x.x is the local subnet. So then 10.10.125.* should be able to see 10.10.10.* ?

The question is around the ip addressing of the DR kit and how point to point work. Would i not need to have a different subnet completely on the dr kit, say something like 172.16.50.*/24 and then ask the DR people to route that subnet across the point to point? would either way work?

If the point to point is just a fiber extension of our network to another site, then surely it would work with 10.10.* range. But as it will most likely need to go in to a firewall/router at the DR side then it may be best to have a different subnet?

oldbag · 6 Dec 2013 at 14:44

If it's point to point it's not routing aware.

If the networks are different you will need to route.

anything I don't mind · 6 Dec 2013 at 14:52

Ok just spoke to my boss who helped a bit.

He also said that i will need to add routes.

He said get the ip of the local ntu once you have patched it in to the switch. then try ping the other remote ntu and get that ip. then patch that ntu in to our switch at DR. Then might need to add a route to that switch and back again.

Once that is in place then we can look at connecting the vfiler on a vlan off the DR switch.