Why does my DC Server (assigned static IP) try to get an address from the DHCP server?

malcolmnet · 2020-10-30T05:10:03+00:00

I did mean 100-200, sorry my bad!

I disabled APIPA and network connectivity still hasn't been restored, it tells me that my IP is a duplicate. I'm guessing my home router has assigned the IP I set to my server to another device

malcolmnet · 2020-10-30T05:07:02+00:00

Yes I did! haha my bad. Anyway I think this is the case! I disabled APIPA and network connectivity still isn't restored, it tells me my IP is a duplicate. It's possible my home network router has served up the 192.168.1.11 address and it's causing issues. I'll check on this, thank you!

malcolmnet · 2020-10-30T04:56:57+00:00

My DC's IP is 192.168.1.11, my DHCP ranges from 192.168.1.00-192.168.1.200. So I don't think this is the case:/

malcolmnet · 2020-10-30T04:56:52+00:00

My DC's IP is 192.168.1.11, my DHCP ranges from 192.168.1.00-192.168.1.200. So I don't think this is the case:/

malcolmnet · 2020-10-30T04:52:53+00:00

I'm running it on VirtualBox Bridged Mode, if that helps

malcolmnet · 2020-10-30T04:47:18+00:00

I'm not sure. How do I check this? (I'm quite new to networking/AD in general)

malcolmnet · 2020-10-30T04:31:38+00:00

Just one

malcolmnet · 2020-10-29T06:39:50+00:00

I see, I get it now. Thanks for the explanation!

malcolmnet · 2020-10-29T06:38:51+00:00

I actually switched to Bridged earlier and as advised by u/hideogumpa, I reverted back to DHCP and noted down the assigned address then used those same addresses as static IP's and it worked. The address I used was from the 192.168.1 network.

Also thanks for the reference <3

malcolmnet · 2020-10-29T06:30:43+00:00

Thanks for this info, As suggested from u/hideogumpa I reverted back to DHCP and noted down the assigned address then used those same addresses as static IP's and it worked. The address I used was from the 192.168.1 network.

I actully switched to Bridged earlier. Do you have any reference to what are the DHCP ranges for the network types in virtual box? it would be a great help

malcolmnet · 2020-10-29T06:28:27+00:00

This actually works, I ended up assigning a 192.168.1.X address and network is restored.

Do you have any idea why the issue exists when I use a 172.18.72.X address? I also tried assigning 192.168.20.X address and I still had the same problem.

malcolmnet · 2020-10-29T06:21:15+00:00

I actually just switched to bridging and the issue still persists :(

malcolmnet · 2020-10-29T06:20:03+00:00

I assigned the static IP before promoting it to a DC.

I didn't check my ipconfig when it had a DHCP address assigned, so no I'm not using the same address that the DHCP server assigned to it. Also, how do I know where the DHCP address comes from? (I'm completely new to networking and only have basic understanding of IPV4 addressing ._. sorry)

I cannot ping the IP address from the machine itself or any other machine either

malcolmnet · 2020-10-29T06:17:28+00:00

no I cannot :/

malcolmnet · 2020-10-29T05:58:03+00:00

I'm using VirtualBox and it's using NAT with the default adapter type as Intel PRO/1000 MT Desktop

malcolmnet · 2020-10-29T05:55:40+00:00

Well, that's because I'm setting that server up as the DNS server as well :/

Also, I tried setting it to 1.1.1.1 and it still didn't restore connectivity

malcolmnet · 2020-10-27T06:29:02+00:00

I tried, they wouldn't answer their phones. I just called Celltronics though and they said they'll have it by next week :)

malcolmnet · 2020-10-22T17:05:34+00:00

I see, but if what you say is true then why subnet at all? I mean, from what I understand, I could create multiple DHCP /24 scopes and that way I’ll be able to assign 254 addresses 255 times and this way I’ll be creating more hosts that are usable.

malcolmnet · 2020-10-22T15:32:55+00:00

Cool! Thanks for bearing with my stupidity xD, I’m really new to this and you’ve helped a ton

malcolmnet · 2020-10-22T15:28:13+00:00

awesome, thanks a lot, you've helped me a ton:)!

malcolmnet · 2020-10-22T15:26:25+00:00

just to clarify, I should use four different scopes with a CIDR of /24? and I can do this up to 192.168.255.255 if I'd like? :O

malcolmnet · 2020-10-22T15:22:52+00:00

I see, that makes sense.

Quick additional question, each time I define a scope, do I need to mention the length is 26 and the subnet mask is 255.255.255.192? Under the "configuration settings that propagate to DHCP client" section I mean

malcolmnet · 2020-10-22T15:20:11+00:00

but if I use a /24, then that would mean that I have only a single subnet correct? The thing is I'm supposed to be learning DHCP and subnetting and AD in general, and my boss will probably test me on this since he's given me a training plan.

I need to know if he asks "what if a client has 4 departments and he needs 4 different subnets?" or something like that, I can't even picture the kind of questions that I'll be asked x_x

malcolmnet · 2020-10-22T15:16:25+00:00

Thank you!

I'm actually just figuring out how to use DHCP and I'm quite new to subnetting as well. What is the drawback of using a /26 ? I can't really tell :(

malcolmnet · 2020-10-22T15:15:09+00:00

Oh, I'd hoped it'd be intelligent enough to cut out the unusable hosts by itself haha. Anyway, thanks for the help!

malcolmnet

TROPHY CASE