Zoom x6 DSL modem & multiple IP addresses (Verizon)
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Posted by Joel Kolstad on August 16, 2006, 7:29 pm
Please log in for more thread options Hello, I currently having a working DSL setup with Verizon using a Zoom x6 modem. The business this is for is changing their plan with Verizon such that, rather than having a single dynamic IP address, we'll be getting 5 static IP addresses. Question: Will a Zoom x6 modem support multiple IP addresses? From reading the manual and searching their knowledge base, I'm tending to think not. (On the other hand, presumably the new modem Verizon supplies with their "self install" kit will? I just rather like some of the x6's features and wanted to keep it if possible.) I've used various DSL & cables modems in the past, but never with more than one (public) IP. Thank you, ---Joel Kolstad | |||||||||||||
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Posted by Joel Kolstad on August 16, 2006, 7:36 pm
Please log in for more thread options I read a few other postings and figured I should provide more details about the system: -- At present, the Zoom x6 plays firewall & NAT. A switch is connected to the Zoom's Ethernet port, which goes to the LAN... about 15 PCs, including a server that has various ports directed across the Zoom for, e.g., incoming e-mail, web access, etc. (This is a business class DSL connection -- this is all on the up-and-up.) -- Why multiple IPs? The company got a new office phone system from Vodavi. It has a VoIP feature, so the 2nd IP is for the phone system's private use (incoming VoIP sessions). Why not just route some ports from a single IP to the phone system? Because -- and this is the answer from the local Vodavi representative -- "Vodavi doesn't document what ports & protocols they use; *all* ports must be available to the system." :-( ---Joel | |||||||||||||
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Posted by Doug McIntyre on August 16, 2006, 7:54 pm
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>Question: Will a Zoom x6 modem support multiple IP addresses? From reading
>the manual and searching their knowledge base, I'm tending to think not. (On >the other hand, presumably the new modem Verizon supplies with their "self >install" kit will? I just rather like some of the x6's features and wanted to >keep it if possible.) The Zoom x6 will do static IP routing just fine. From your subsequent posting, you'll have to turn off NAT and the firewall though. So you'll probably be adding another router behind this one. The Zoom won't do concurrent NAT and static routing. Very few routers do. | |||||||||||||
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Posted by Joel Kolstad on August 16, 2006, 11:28 pm
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Thanks for the response, Doug. So I turn off the NAT & firewall options in the X6 and -- poof -- it then just bridges the 5 static IPs over to the Ethernet ports, eh? I'm thinking I'll then connect a Netgear FVS318 to do the NAT/firewall and I guess just plug the phone system's VoIP port into the X6 directly. I did notice the X6 has a "half bridge" mode where it routes everything to... a single MAC address, apparently? That doesn't sound like it would help here. If one is assigned multiple IP addresses and you leave NAT on, what happens? It just picks up the first one of the block, perhaps? ---Joel | |||||||||||||
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Posted by DLR on August 17, 2006, 12:42 am
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Joel Kolstad wrote: > Thanks for the response, Doug. So I turn off the NAT & firewall
> options in the X6 and -- poof -- it then just bridges the 5 static > IPs over to the Ethernet ports, eh? I'm thinking I'll then connect a > Netgear FVS318 to do the NAT/firewall and I guess just plug the phone > system's VoIP port into the X6 directly. > > I did notice the X6 has a "half bridge" mode where it routes > everything to... a single MAC address, apparently? That doesn't > sound like it would help here. "bridges" is a very misleading word here. I buy my business services from a local ISP who offers the choice of routed or bridged. If I went with Bellsouth it would be routed only. And routed gives you the 5 IPs. With bridged you'd likely get a login for PPPoE which would assign YOUR router an IP and route all 8 IPs of the block to your router. >
Do you have control over the router?
> If one is assigned multiple IP addresses and you leave NAT on, what > happens? It just picks up the first one of the block, perhaps? > For years I did the Static External IPs and 1 to many NAT and 1 to 1 NAT with Netopia 9100s. They are a wee bit long in the tooth now. I'm looking at Linksys RMxxxx units to replace them. (I want dual WAN support). But you'll not find support for the 3 things at once and multiple static IPs in the $50 after a rebate router. If you have control over the router see if you can do all of the above. Or at least Static IPs and many to 1 NAT at the same time. If not, you'll need a router that you provide. | |||||||||||||
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>The business this is for is changing their plan with Verizon such that, rather
>than having a single dynamic IP address, we'll be getting 5 static IP
>addresses.