[handyman]

I have a surfboard 5100 I just got from comcast. I'm running 5 win2k boxes on it thru a bfsr11 router (which is getting flaky) and a netgear 8 port switch. the docs for the 5100 says it provides DHCP for up to 32 computers, allowing you to use the modem for those 32 boxes directly through a hub or a switch. A diagram is provided showing this setup. The docs say NOTHING about whether it does any NAT or routing or firewalling or anything, so I doubt it.

I thought I'd ask you folks if you know anything about this alleged capability of the sb5100.

Maybe I'll just try it and see what happens....

[GiPWeb]

I doubt it will work like a router. I suspect they have it set up so it will assign an isp porvided ip address to each computer ergo each computer will be registered with the isp and might leave you on the hook for paying for each computer you have connected. If you do try it check to see what the specific of each lan connection of each computer is. If they have the same ip range as your old router would recieve from your isp's dhcp then your isp knows each one is coming from your house and will want to charge you for each additional connection.

G.i.P

This post has been edited by GiPWeb: 14 February 2005 - 07:57 AM

[Merkava]

sorry according to motorola it does not

http://broadband.mot...sb_faq.html#p30

I have a SB4200 i connect it to a wireless router and thats all. use your current linksys one or get a new one once it dies.

err weird i thought i clicked on 5100....but i bet its the same just check around that site. even the product data sheet
http://broadband.mot...odem/sb5100.pdf

This post has been edited by Merkava: 14 February 2005 - 08:01 AM

[handyman]

Thanks, I figgered as much. Just curious.

On second thought I would not want to expose my internal network directly to a device whose config is controlled by comcast. Having that router there is very nice, even if it does give tech support a fit...

comcast.. what seems to be the problem, sir?

me: my modem's downstream snr is reading 21 dB and I've got alot of packet loss.

comcast: sir, I can't see your computer, are you using a router?

me: yes, but what does that have to do with my lousy downstream snr?

comcast: sir, I cannot troubleshoot your home network, you'll have to connect your pc directly to the modem..

and bla bla bla and so on....

Just thought I'd throw that in for some humor...

[merslain]

i have that modem, i use comcast too....you will need a router...btw what state are you in?

[Devil McDunnough]

the surfboards can act as a gateway not a router.

[Dutch2005]

jup your right and now quoting some thing from the surfboard modem i got:

Quote

The SURFboard cable modem can be used as a gateway to the Internet by a maximum of 32 users on a Local Area Network (LAN). When the Cable Modem is disconnected from the Internet, users on the LAN can be dynamically assigned IP Addresses by the Cable Modem DHCP Server. These addresses are assigned from an address pool which begins with 192.168.100.11 and ends with 192.168.100.42. Statically assigned IP addresses for other devices on the LAN should be chosen from outside of this range

es you can see it is saying GATEWAY.......

version:

Software Version: SB5100E-2.3.1.3-SCM01-NOSH
Hardware Version: 3
MIB Version: II
GUI Version: 1.0
VxWorks Version: 5.4

cu around

This post has been edited by Dutch2005: 16 February 2005 - 03:19 PM