DHCP Server for ICS Network: How IP Addresses Change on Broadband Connection

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SUMMARY

The discussion centers on the behavior of IP addresses in an Internet Connection Sharing (ICS) network setup using Windows. Users noted that in such configurations, the host typically assigns a static IP address to the client, often within the 192.168.0.x range, despite being dynamically assigned. It was confirmed that while broadband connections can change IP addresses, the internal client IPs in an ICS setup remain consistent. The use of the winipcfg tool was suggested for checking IP information.

PREREQUISITES
  • Understanding of Internet Connection Sharing (ICS) in Windows
  • Familiarity with IP address classes, particularly Class C
  • Basic knowledge of software NAT (Network Address Translation)
  • Experience with Windows networking tools, specifically winipcfg
NEXT STEPS
  • Research the configuration and management of Internet Connection Sharing (ICS) in Windows XP
  • Learn about the differences between dynamic and static IP address assignment
  • Explore software NAT implementations and their impact on network performance
  • Investigate alternative methods for IP address management in small networks
USEFUL FOR

This discussion is beneficial for network administrators, IT professionals managing small networks, and users interested in understanding IP address behavior in ICS setups.

Radiatedtheory18
i've got 2 computers running on a ICS network without a router. I am on broadband with 1 ip address. the host is giving the client a separate ip address. will the clients computer's ip address change each time the computers are networked? because i know when i dial up broadband the ip addresses change i think.

thanks
 
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Originally posted by Radiatedtheory18
i've got 2 computers running on a ICS network without a router. I am on broadband with 1 ip address. the host is giving the client a separate ip address. will the clients computer's ip address change each time the computers are networked? because i know when i dial up broadband the ip addresses change i think.

thanks

A simple way to check is go to Start>Run>winipcfg

this will give you the IP information. I'm pretty sure your computer will give the same IP each time though, I'm not positive, but with my experience the computer has given the same IP even if it is dynamically assigned.
 
What's ICS?

Usually in these setups, you're doing some kind of software NAT on the host, and it will generally give the same IP to the client, often something like 192.168.0.1 .
 
Originally posted by damgo
What's ICS?

Usually in these setups, you're doing some kind of software NAT on the host, and it will generally give the same IP to the client, often something like 192.168.0.1 .

ICS is internet connection sharing, made big with XP, available for windows 98.

A normal windows network, computer-to-computer, would use a variation of the 192.168.0.1 IP, although, he is using a router and they can be a lil different, chances are he is still running a class c IP though.
 
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