[Static and dynamic IP problem] -
Static and dynamic IP problem
Discuss Static and dynamic IP problem
Posted by: Sven556
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
Posted by: mikesgroovin
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
Posted by: Sven556
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
Posted by: ekĘsine
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! :o
Posted by: mikesgroovin
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.
[url]http://www.tigerdirect.com/applications/searchtools/item-Details.asp?EdpNo=618593&sku=D700-2059[/url]
-Michael
Posted by: digital_darknes
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.
Posted by: dethangel
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
Posted by: mikesgroovin
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
Posted by: Sven556
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
Posted by: mikesgroovin
The DI-604 has and internal firewall. For $45, it's a good buy.
-Michael
Posted by: digital_darknes
I agree with Mike.
Posted by: ekĘsine
[QUOTE][i]Originally posted by Sven556 [/i]
[B]So I can't set it up so that both cable internet and my home network will work simultaneously? [/B][/QUOTE]
no, we are not saying this. if you get the router you can share the internet AND files and folders on your network at the same time.
this is the whole point of networking, sharing and hacking into other peoples computers to steal pr0n :p
Posted by: i_krayzie_i
you should be able to use just the hub but not using dchp or specify the specific computer name given to you by the isp and it should assign different ip's
Posted by: ekĘsine
[QUOTE][i]Originally posted by i_krayzie_i [/i]
[B]you should be able to use just the hub but not using dchp or specify the specific computer name given to you by the isp and it should assign different ip's [/B][/QUOTE]
what? mikesgroovin does this make sense to you either?
Posted by: mikesgroovin
Well, if the cable/DSL modem has some sort of built in router, sure.
But with just a standard cable/DSL modem, no, this won't work.
All the hub will do it pass packets along to everything connected to it. Therefore it won't know the difference between IP addresses. And the ISP only assigns one IP address per modem, so you may as well just connect one computer directly to the modem.
Even i_krayzie_i's post doesn't make sense...in any configuration how would disabling DHCP allow any ISP to assign a device an IP address? If you have disabled DHCP, then you are disabling the functionality of the device getting an IP address besides the one to statically assign to it.
*i_krayzie_i*
The internet is based on routing. A router will strip off the MAC address and NetBIOS Computer name of any packet it receives. If the ISP were to send a packet intended for of of his PCs on the LAN then how else would the packet get reconstructed once the packet reached the hub? If you are going to share a cable/DSL modem connection between two or more PCs on a LAN then you need routing.
-Mike