How to Configure Router for Metro Ethernet - which router to choose ?
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: 50.207.18.240/29 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 50.207.18.214/30 with gateway 50.207.18.213. 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?
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: 50.207.18.240/29 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 50.207.18.214/30 with gateway 50.207.18.213. 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?
John
I use Juniper NS5GT and later SSG5 at clients. The configuration you have for one IP 50.207.18.214 and gateway 50.207.18.213 should be valid. For the IP, I would just use a single IP and not a range. Perhaps that is what Comcast is referring to .
ASKER
John Hurst: Are you on a Metro Ethernet link as well (with both a WAN block and a LAN block)?
No. I am in a different country in North America and the local ISP's are not Metro Ethernet.
However my clients have a block of several IP addresses and I just use one.
However my clients have a block of several IP addresses and I just use one.
ASKER
John Hurst: thanks for your comments. However, the key problem here is that the WAN Block and the LAN Block are 2 different disjoint block of addresses. I am not sure how to tell the Juniper how to handle this situation...
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John Hurst: I just talked to a support engineer at Comcast. Given our needs, he said that we can just ignore the LAN IP block (hmmm.... I think that is exactly what you said!). I am closing the case and awarding the points to you - thanks a million !!
@ponedog - Thanks for the update and I was happy to help.