Router for 2 Subnets

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Hertfordshire
Hi All,

I need some help trying to find a router for my offices. We are having a site to site 100Mbps line install between our two offices. The ISP is being a bit vague when it comes to what equipment we need to buy to connect up the two networks that already exist.

Currently we use MS ISA and VPN tunnels to connect our two subnets

192.168.0.XXX & 192.168.2.XXX

Can anyone suggest a reasonably cheap router we can get to connect the two sites, that will allow all traffic.

We are not overly worried about throttling the traffic that goes over the line at the moment but obviously this will be a small concern later on.

Thanks All
 
First ask the ISP what Customer Premises Equipment they will be installing as it's entirely likely they will install two Cisco routers on site for you to manage the line - which sounds like it'll be a LES circuit.
 
First ask the ISP what Customer Premises Equipment they will be installing as it's entirely likely they will install two Cisco routers on site for you to manage the line - which sounds like it'll be a LES circuit.

I have, basically the way it was described is its a layer 2 services, so effetively we could plug a switch on each end and we would be able to use it straight away, but obviously we have the 2 subnets already and we now have too many devices for a single subnet, which is where the router comes in.
 
OK so it's definately a Lan Extension Service by the sounds of things, I would hazard a guess that both ends of the link can be plugged into a switch like you said to create one large collision domain or vlan. So you should be able to connect one end directly to the local switch and at the other end stick it into a router with 2x1000/100Mb ethernet ports.

Plug one of the routers ports into the LES and the other into the local lan, then configure each port to have an ip address specific to each subnet - something like:

Port1: 192.168.0.254 - local lan
Port2: 192.168.2.254 - les connection.

Most cisco's in a default mode would route this for you.
 
OK so it's definately a Lan Extension Service by the sounds of things, I would hazard a guess that both ends of the link can be plugged into a switch like you said to create one large collision domain or vlan. So you should be able to connect one end directly to the local switch and at the other end stick it into a router with 2x1000/100Mb ethernet ports.

Plug one of the routers ports into the LES and the other into the local lan, then configure each port to have an ip address specific to each subnet - something like:

Port1: 192.168.0.254 - local lan
Port2: 192.168.2.254 - les connection.

Most cisco's in a default mode would route this for you.

EDIT: The alternative (and maybe cheaper/more sensible route) is to change your subnets from class C to class B or A and renumber your lan devices, but that all depends on the number of servers etc that you have and can be a sophisticated job with plenty of pitfalls.
 
Yes, thats exactly how it will be. I just need to know which router I need to get.

The ISP providing the circuit has said we need a router at both ends, but logically I cant see why?

The one they recommended was a CISCO 2851, but it looks like its far too much for what we need it to do, and to be perfectly honest I'm not sure how to configure them... yet...

Is that router overkill? can you recommend something cheaper that will be easier to maintain?
 
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