On Fri, May 20, 2016 at 1:31 PM, Moshe Katz <[email protected]> wrote:
> On Fri, May 20, 2016 at 12:19 PM, WebDawg <[email protected]> wrote: > > > On Fri, May 20, 2016 at 11:06 AM, Moshe Katz <[email protected]> > wrote: > > They will not let you bring your own modem if you have a static IP. > > I wrote the last message on my tablet, so I had to keep it short, but I can > explain further now. > > Basically, when you get static IPs from Comcast, they do not want to set up > the routing for them upstream in the central office (like most other ISPs > would do). > Instead, they assign your "Business IP Gateway" device (which is a > modem/router/firewall combination) a dynamic IP that is in the same block > of IPs that the entire rest of your neighborhood has. After the Business > IP Gateway has received its dynamic address, it advertises itself (I > believe using RIP) as the next hop to the IP addresses that have been > allocated to you. > > Additionally, the Gateway runs a DHCP server in the 10.x.x.x range. Any > computer on your network that requests an address on DHCP will receive a > private address from the Gateway and the Gateway will perform NAT. > > In effect, this allows you to have your public addresses and private > addresses on a single connection to the Internet, with the public addresses > routed and the private addresses NAT'ed. > > To make a long story short, not only will Comcast not allow you to use a > simple Arris Surfboard modem for static IPs, the way their system is set up > would not even work if you tried to use a plain modem, because your modem > wouldn't be able to claim the addresses. > In theory, Comcast could just allow you to set up your own RIP > advertisements from your own hardware. I'm guessing that the reason they > don't want to do that is because they'd rather have full control. > > Moshe > > -- > Moshe Katz > -- [email protected] > -- +1(301)867-3732 > > Hmm, That would be the solution then? Setup RIP. Has anyone asked? _______________________________________________ pfSense mailing list https://lists.pfsense.org/mailman/listinfo/list Support the project with Gold! https://pfsense.org/gold
