- Apr 11, 2012
- 2
- 0
- 10,510
I have been told by The Cox Rep as well as the Cox Techs that it is perfectly normal. However, it doesn't work as it I would think it should and the rep and techs seems to disagree on why. I purchased 5 static Public IP's that run to the Docsis3 Modem. From the single output of the modem, I ran to a gigabit switch and from there out to 2 routers and 3 devices needing the static public IP's.
The thing that is most puzzling is that this is the exact same setup I have been running for 7 years on a pair of bonded T1's. It worked great on the T1's and was logically the only way it could be done.
Cox Techs are now saying that a cable modem is only capable of handing two IP's at a time. On the other hand, the sales techs say 5 is no problem. My tests showed that exactly two is all I can get STATIC, I can get more but they could be anything as I have to go with Dynamic on the settings for IP and DNS.
The Main techs who say it is normal to only get two with this arrangement have said that if I run the output from the modem to a single router, then go from that router to the other devices it would work.
I think maybe it will need extra routers alright but not in that order. I think still out of modem into switch to get the 5 lines. All 5 must go to some kind of router programmed one for each IP, what I do with it "After" the router would be what ever I need.
Case in point: Two of the lines will be running website servers whose 'A' records must stay static to be of any use. One goes to a videoconference setup which has always been static, It is tied direct to the net with its own equipment I never looked to see if dynamic was an option. Another IP feeds a router/firewall going to a SQL Server accessed via VPN which must stay on the same static IP.
Does anyone have any suggestions? Especially anyone who has ever done this before? Cox acts like they do it all the time but cannot seem to get two techs to have the same wiring schematic to get it to work and I only have a few days left before the switch over fro the T1's.
The thing that is most puzzling is that this is the exact same setup I have been running for 7 years on a pair of bonded T1's. It worked great on the T1's and was logically the only way it could be done.
Cox Techs are now saying that a cable modem is only capable of handing two IP's at a time. On the other hand, the sales techs say 5 is no problem. My tests showed that exactly two is all I can get STATIC, I can get more but they could be anything as I have to go with Dynamic on the settings for IP and DNS.
The Main techs who say it is normal to only get two with this arrangement have said that if I run the output from the modem to a single router, then go from that router to the other devices it would work.
I think maybe it will need extra routers alright but not in that order. I think still out of modem into switch to get the 5 lines. All 5 must go to some kind of router programmed one for each IP, what I do with it "After" the router would be what ever I need.
Case in point: Two of the lines will be running website servers whose 'A' records must stay static to be of any use. One goes to a videoconference setup which has always been static, It is tied direct to the net with its own equipment I never looked to see if dynamic was an option. Another IP feeds a router/firewall going to a SQL Server accessed via VPN which must stay on the same static IP.
Does anyone have any suggestions? Especially anyone who has ever done this before? Cox acts like they do it all the time but cannot seem to get two techs to have the same wiring schematic to get it to work and I only have a few days left before the switch over fro the T1's.
Facebook
Twitter
Instagram