Static and dynamic IP problem

Sven556 · 12-09-2003, 05:27 PM

Hi there, I'm new to this forum and I have a problem that seems complicated (I doubt that it is complicated to all of you though). I have cable internet which requires that my PCs have a dynamic IP address.

I can't figure out how to get TCP/IP configured to work with a dynamic IP

Then, I also have Norton firewall on my PCs and I can't even get that to let the network connection through with a static IP.

Right now if I need to use a network between my PCs I have to switch from dynamic IP to static (Internet stops working when I do this) Then I have to disable Norton Firewall on both PCs.

Both PCs are running Win 98 SE
Network is regular cat 5 cable

Is there any way around this problem?

Thanks,
Sven

mikesgroovin · 12-09-2003, 05:40 PM

Do you have a router/gateway between your cable modem and your PCs? Or is one PC acting as the gateway with 2 network cards?

If you have a hardware gateway/router that both of your PCs are connected to then, in windows 98, you have to goto your Network Neighborhood properties and goto the properties for TCP/IP. Here, just make sure that no ip address exists here. Make sure that tyou have DHCP enabled. The router, if connected correctly will assign the two PCs the ip addresses/masks/gateways they need.
To find out what ip addresses were assigned, goto start > run > type "command". At the prompt, type "ipconfig". This should show you the ip address info that you are after. It is a little more complicated without a hardware gateway/router from an end-user stand point. I will post instructions if this is the case.

This is a high level explaination, so post your entire hardware configuration on here and you should get a more direct answer from someone.

-Michael

Sven556 · 12-09-2003, 10:33 PM

Thanks for the quick reply,
Unfortunately I don't have a router. I'm set up so that both PCs, and the cable modem are connected to a hub. I don't have one computer acting as a gateway.
I would appreciate it if you could explain this set up to me?

Thanks again,
Sven

ekÆsine · 12-10-2003, 03:29 AM

you need a router to share the internet. a hub cannot handle routing information on the internet. however, you can use a hub to increase the number of devices connected to the router.

another way is ICS software like sygate home/ office network, but it would cost the same to buy a router and not work as good. ICS requires 2 NICS and a computer serving the connection be turned on for the other computers to share the internet.

to use a router is easier than what mike makes it seem, it's mostly plug and play. the broadband modem and computers on the network plug into the router, that basically it!

mikesgroovin · 12-10-2003, 07:48 AM

Thanks dude!
Yea, sometimes I go off on a tangent and can make things more complicated.

Ok.....all the time.
Yes, he is correct, you need a gateway/router. He is also correct when he says how easy it is to setup.
I just bought a SoHo gateway/router from BestBuy for a client and it was $45.
Here is the DI-604 model that I bought. This one is recertified but just to give you an idea.

http://www.tigerdirect.com/applicati...&sku=D700-2059

-Michael

digital_darknes · 12-10-2003, 08:41 AM

I recommend what these guys said. When you do this, if it has to be dynamic, just go into ip properties and obtain an ip address.

dethangel · 12-10-2003, 03:49 PM

for the price, i would recommend a switch, unless you are passing sensitive financial or otherwise needs-to-be-secure data, then i would go with a good router and safe firewall

mikesgroovin · 12-10-2003, 05:32 PM

A switch will not work in his case without a router.
Right now, he has a cable modem attached to a hub. A hub only works on layer 1 and passes the data it receives through every other port.
A switch will only work on layer 2 and pass packets by reading MAC addresses (most of them). In this case, he needs a router so that the IP packet that is sent from the cable modem can be reconstructed and eventually "routed" to the correct MAC address.
The DI-604 gateway/router listed above is a gateway/router/switch combo. It will be all that he needs (short of two NICs and a few cables).

-Mike

Sven556 · 12-10-2003, 05:35 PM

So I can't set it up so that both cable internet and my home network will work simultaneously?
If this is the case I may just leave it be for now.

If I get a router do you recommend one with a firewall on it?

Thanks

mikesgroovin · 12-10-2003, 05:38 PM

The DI-604 has and internal firewall. For $45, it's a good buy.

-Michael

12-09-2003, 05:27 PM	#1 (permalink)
Sven556 Newb Techie Join Date: Dec 2003 Posts: 4	Static and dynamic IP problem Hi there, I'm new to this forum and I have a problem that seems complicated (I doubt that it is complicated to all of you though). I have cable internet which requires that my PCs have a dynamic IP address. I can't figure out how to get TCP/IP configured to work with a dynamic IP Then, I also have Norton firewall on my PCs and I can't even get that to let the network connection through with a static IP. Right now if I need to use a network between my PCs I have to switch from dynamic IP to static (Internet stops working when I do this) Then I have to disable Norton Firewall on both PCs. Both PCs are running Win 98 SE Network is regular cat 5 cable Is there any way around this problem? Thanks, Sven

12-10-2003, 08:41 AM	#6 (permalink)
digital_darknes Super Techie Join Date: Dec 2003 Posts: 434	I recommend what these guys said. When you do this, if it has to be dynamic, just go into ip properties and obtain an ip address. __________________ CCNA, CCNP, A+, N+. ________________ I agrue with people.\| --------------------------

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12-09-2003, 05:40 PM	#2 (permalink)
mikesgroovin honk if you route packets Join Date: Sep 2003 Posts: 3,742	Do you have a router/gateway between your cable modem and your PCs? Or is one PC acting as the gateway with 2 network cards? If you have a hardware gateway/router that both of your PCs are connected to then, in windows 98, you have to goto your Network Neighborhood properties and goto the properties for TCP/IP. Here, just make sure that no ip address exists here. Make sure that tyou have DHCP enabled. The router, if connected correctly will assign the two PCs the ip addresses/masks/gateways they need. To find out what ip addresses were assigned, goto start > run > type "command". At the prompt, type "ipconfig". This should show you the ip address info that you are after. It is a little more complicated without a hardware gateway/router from an end-user stand point. I will post instructions if this is the case. This is a high level explaination, so post your entire hardware configuration on here and you should get a more direct answer from someone. -Michael

12-09-2003, 10:33 PM	#3 (permalink)
Sven556 Newb Techie Join Date: Dec 2003 Posts: 4	Thanks for the quick reply, Unfortunately I don't have a router. I'm set up so that both PCs, and the cable modem are connected to a hub. I don't have one computer acting as a gateway. I would appreciate it if you could explain this set up to me? Thanks again, Sven

12-10-2003, 03:29 AM	#4 (permalink)
ekÆsine Wizard Techie Join Date: Jul 2003 Posts: 3,940	you need a router to share the internet. a hub cannot handle routing information on the internet. however, you can use a hub to increase the number of devices connected to the router. another way is ICS software like sygate home/ office network, but it would cost the same to buy a router and not work as good. ICS requires 2 NICS and a computer serving the connection be turned on for the other computers to share the internet. to use a router is easier than what mike makes it seem, it's mostly plug and play. the broadband modem and computers on the network plug into the router, that basically it!

12-10-2003, 07:48 AM	#5 (permalink)
mikesgroovin honk if you route packets Join Date: Sep 2003 Posts: 3,742	Thanks dude! Yea, sometimes I go off on a tangent and can make things more complicated. Ok.....all the time. Yes, he is correct, you need a gateway/router. He is also correct when he says how easy it is to setup. I just bought a SoHo gateway/router from BestBuy for a client and it was $45. Here is the DI-604 model that I bought. This one is recertified but just to give you an idea. http://www.tigerdirect.com/applicati...&sku=D700-2059 -Michael

12-10-2003, 03:49 PM	#7 (permalink)
dethangel Ultra Techie Join Date: Apr 2003 Posts: 934	for the price, i would recommend a switch, unless you are passing sensitive financial or otherwise needs-to-be-secure data, then i would go with a good router and safe firewall

12-10-2003, 05:32 PM	#8 (permalink)
mikesgroovin honk if you route packets Join Date: Sep 2003 Posts: 3,742	A switch will not work in his case without a router. Right now, he has a cable modem attached to a hub. A hub only works on layer 1 and passes the data it receives through every other port. A switch will only work on layer 2 and pass packets by reading MAC addresses (most of them). In this case, he needs a router so that the IP packet that is sent from the cable modem can be reconstructed and eventually "routed" to the correct MAC address. The DI-604 gateway/router listed above is a gateway/router/switch combo. It will be all that he needs (short of two NICs and a few cables). -Mike

12-10-2003, 05:35 PM	#9 (permalink)
Sven556 Newb Techie Join Date: Dec 2003 Posts: 4	So I can't set it up so that both cable internet and my home network will work simultaneously? If this is the case I may just leave it be for now. If I get a router do you recommend one with a firewall on it? Thanks

12-10-2003, 05:38 PM	#10 (permalink)
mikesgroovin honk if you route packets Join Date: Sep 2003 Posts: 3,742	The DI-604 has and internal firewall. For $45, it's a good buy. -Michael