Where is my DHCP server located~?

bruceleejr · 10-16-2009, 09:18 PM

If my DHCP server has an IP address of 172.19.73.64 , where is it at~??

I tried tracing the IP but I guess its private & untraceable ....

Where is my DHCP server located & why does my ISP's router(68.2.45.1) have a different IP address than the DHCP server~??

Dont I get my dynamic IP from my ISP~?? If so , why is the DHCP IP different from the ISP's router IP~????

**johnwill** · 10-17-2009, 08:52 AM

That is a private IP address, so it's somewhere on your local network. Some ISP's have routers in their networks, in which case this would be the ISP router.

Perhaps you sould tell us something about the network.

techbytes · 10-17-2009, 10:25 AM

Quote:

Originally Posted by bruceleejr

Where is my DHCP server located & why does my ISP's router(68.2.45.1) have a different IP address than the DHCP server~??

DHCP server can be anywhere on their network. It doesn't have to be on the router. Meaning they can have different IP.

Quote:

Originally Posted by bruceleejr

Dont I get my dynamic IP from my ISP~?? If so , why is the DHCP IP different from the ISP's router IP~????

Are you connected directly to their modem?

bruceleejr · 10-17-2009, 12:50 PM

Yes Im connected directly to my surboard modem

techbytes · 10-17-2009, 02:38 PM

So what is your concerns?

Show us the results for your "ipconfig /all"

**bilbus** · 10-17-2009, 06:27 PM

You may be getting that from your modem, cable modems generally run a private network with all of the other modems on the node, and talk to the head-end that way.

There was a time when comcast did not secure their modem network and you used to be able to see anyone on the comcast network be \\10.x.x.x and if they had no router in front and no software firewall you could view their files.

There was a writeup on GRC about it.

So what your likely seeing is the head-end DHCP server.

**johnwill** · 10-18-2009, 07:52 AM

Perhaps a description of the environment? What's the exact make/model of the modem, the router, as well as the ISP you use.

10-16-2009, 09:18 PM	#1 (permalink)
bruceleejr Registered User Join Date: Jan 2009 Posts: 96 OS: winxp sp2	Where is my DHCP server located~? If my DHCP server has an IP address of 172.19.73.64 , where is it at~?? I tried tracing the IP but I guess its private & untraceable .... Where is my DHCP server located & why does my ISP's router(68.2.45.1) have a different IP address than the DHCP server~?? Dont I get my dynamic IP from my ISP~?? If so , why is the DHCP IP different from the ISP's router IP~????

10-17-2009, 08:52 AM	#2 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 41,983 OS: Windows 7, XP-Pro, Vista, Linux Blog Entries: 1	Re: Where is my DHCP server located~? That is a private IP address, so it's somewhere on your local network. Some ISP's have routers in their networks, in which case this would be the ISP router. Perhaps you sould tell us something about the network. __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience

10-17-2009, 12:50 PM	#4 (permalink)
bruceleejr Registered User Join Date: Jan 2009 Posts: 96 OS: winxp sp2	Re: Where is my DHCP server located~? Yes Im connected directly to my surboard modem Last edited by bruceleejr; 10-17-2009 at 12:51 PM.

10-17-2009, 02:38 PM	#5 (permalink)
techbytes Registered User Join Date: Oct 2009 Posts: 112 OS: Vista	Re: Where is my DHCP server located~? So what is your concerns? Show us the results for your "ipconfig /all" __________________ Techbytes.info

10-17-2009, 06:27 PM	#6 (permalink)
bilbus TSF Enthusiast Join Date: Aug 2006 Posts: 967 OS: OS2 Warp	Re: Where is my DHCP server located~? You may be getting that from your modem, cable modems generally run a private network with all of the other modems on the node, and talk to the head-end that way. There was a time when comcast did not secure their modem network and you used to be able to see anyone on the comcast network be \\10.x.x.x and if they had no router in front and no software firewall you could view their files. There was a writeup on GRC about it. So what your likely seeing is the head-end DHCP server.

10-18-2009, 07:52 AM	#7 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 41,983 OS: Windows 7, XP-Pro, Vista, Linux Blog Entries: 1	Re: Where is my DHCP server located~? Perhaps a description of the environment? What's the exact make/model of the modem, the router, as well as the ISP you use. __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience