I know you are getting tired of my ?'s, but.....

edwelly · June 6th, 2002, 01:45 PM

Sorry to keep bringing this up, but I really can't seem to grasp this. I work with networking all day long but this internet gateway is really messing me up. I have never messed with a router before so, I am a little nervous.
My Domain Controller will supply ip's thru DHCP and will be running AD.
My file server will house all of the users info such as user folders.
My main system will be my toy.
My printer server will have a printer hooked to it

I will have a couple more additions within the next few weeks also.
My hub is a Cisco 1516m and can even have it's own IP address.

your thoughts? and a BIG thanks!
---edwelly

bdj · June 6th, 2002, 02:00 PM

Ed,

The internet gateway is to connect to the internet. In your diagram, the router is connected to your hub, (your LAN), and your modem, (WAN / internet). If you run a program that requires an IP address that is not on your LAN, the default gateway (internet gateway) would be selected. Since you using DHCP, you can set the parm. for the default gateway to be the IP address of your internet router. When a workstation comes on line DHCP will set the default gateway ip for that workstation to your internet router. When that workstation starts any program, any ftp access, or internet browser, or E-mail, it will be pointed to the router for access to the internet.

bdj

krohnjw · June 6th, 2002, 02:08 PM

That looks good ED. I would assume you are using a 192.168.0.0 internal network, off of the router. So your gateway will be 192.168.0.1, the port of the router heading out to the internet. I would set it up this way....
A: IP: 192.168.0.100
DNS: DHCP will issue this, you can use ipconfig /all to get them if you want to manually set them for other computers.
Gateway: 192.168.0.1
B: IP:192.168.0.101
DNS: Same
Gateway: Same
C: IP:192.168.0.102
DNS: Same
Gateway: Same
D: IP:192.168.0.103
DNS: Same
Gateway: Same

The gateway is just where it goes if it is not in the routing table, ie things not on your lan. DHCP should take care of all of your settings, or you could set them up manually if you yearn for adventure

edwelly · June 6th, 2002, 02:11 PM

Bjd: So, if I set the IP’s up as
A – IP 192.1.1.1, DNS server 192.1.1.1, gateway of 192.1.1.25
B- IP dynamic, DNS server 192.1.1.1, gateway of 192.1.1.25
C- IP dynamic, DNS server 192.1.1.1, gateway of 192.1.1.25
D- IP dynamic, DNS server 192.1.1.1, gateway of 192.1.1.25
And set the router as IP 192.1.1.25 that should work?
And if C wants to check out www.yahoo.com, it will realize that yahoo is not on 192.1.1.x range

-

-edwelly

krohnjw · June 6th, 2002, 02:15 PM

Well, C will send the packet to yahoo.com to the router, the router will address the name servers to resolve the name to a logical address, which then is easily discerned as on the LAN or not. Is that 2k server machine your dns? Or are you using the DNS provided by your ISP?

edwelly · June 6th, 2002, 02:17 PM

Using a router (say a Linksys) can I assign it a static IP or does it come with one? ---edwelly

<edit> opps... can I assign the router a static IP or does it come with one built it </edit>

krohnjw · June 6th, 2002, 02:19 PM

Assign what, who? I'm confused what you are asking here

edwelly · June 6th, 2002, 02:19 PM

I want to use the server assigned DSN for my internal LAN and the internet connection is purely dynamic. I logged on 3 times last night and got a 66.x.x.x, a 207.x.x.x and a 64.x.x.x. ip address.
---edwelly

krohnjw · June 6th, 2002, 02:22 PM

Well, the name servers aren't going to change (DNS), and the external IP address of your router doesnt matter to your internal network. The router will pick that up when you sign on no problem. As long as your network is set up internally it shouldnt matter whether your IP from the dsl modem changes when you sign on again.

When you are signed in, run an ipconfig /all and it will show your DNS servers, although your router should assign those with DHCP, those shouldnt change, even when your external IP changes.

Underclocked · June 6th, 2002, 02:42 PM

On second thought, I'm too idiot to comment on this one.

I guess my question would be that because the hub has no uplink, would it be necessary to manually assign it an IP within the range allowed by the router?
Get a cheap hub with an uplink Ed, then assign the common workgroup name and let everything config to the router.