How to Configure Router for Metro Ethernet - which router to choose ?
Posted on 2014-11-20
I am not a router expert! So, I am running a simple business network: 35 PC's including 2 servers behind a Juniper NS5GT "router/firewall" - using NAT (internally everyone is 192.168.0.x). Email is routed through the firewall to the exchange server. Majority of usage is outbound web browsing.
So, we have ordered and had installed a new 10MB Metro Ethernet fiber link from Comcast. This fiber link will also be handling the phones - but that is not my concern at this time.
Here's the problem: Comcast is giving me a WAN block of IP addresses as well as a LAN block of IP addresses.
WAN Block: 50.207.18/212/30 (GW is the .213, IP is .214)
LAN Block: 220.127.116.11/29 Usable: .241 thru .246
So... Can I use the Juniper NS5GT ? How can I configure it to do the job? I thought at first that I could just ignore the LAN Block and assign the Juniper the address 18.104.22.168/30 with gateway 22.214.171.124. In fact, I tried that with a Cisco RV120W (spare available to me to test at the time) and it seemed to work. However, Comcast is telling me that this is not a valid configuration. Thoughts?
If the Juniper 5GT will not work, which router would you recommend for this very simple configuration?