IP Address

Question

Level 2

430 points

IP Address

Having a torid time with the Airport and 10.4.4 so have binned the airport, thrown it away for now. So have an iMac connected via Ethernet to the Zoom DSL modem, and I get an IP address of 192,xxx.xxx.xxx. This is by DHCP, I renew the lease on it and usually the same IP Address, But cant connect to the internet, I go to network status and it says that the Ethernet has a fixed IP address configured. OK, So I connect my PB using tha same cable and same network settinbgs, and I get 10.0.0.12 and can connect to the internet. So where is this 192.xxx.xxx.xxx coming from? The PB is fine but not the iMac, any ideas anyone?

Regards

Jed

G5 Dual 2.5Ghz, PBG4 1.25Ghz, Mac OS X (10.4.4)

Posted on Feb 5, 2006 8:08 AM

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Answer 1

Tim Haigh

Level 7

24,198 points

Feb 5, 2006 9:19 AM in response to jed

Hello Jed,

Zoom DSL modems have routing capabilities and an Airport Base station is also a router. So the problems you were getting were probably due to having to NAT routers on the same network.

Can you list the exact model zoom dsl modem your using and which Airport Base station your trying to use I am sure we can get you up an running.

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Answer 2

Tim Haigh

Level 7

24,198 points

Feb 5, 2006 3:47 PM in response to Tim Haigh

So the problems you were getting were probably due to having to NAT routers on the same network.

should have read.

So the problems you were getting were probably due to having two NAT routers on the same network.

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Answer 3

Feb 5, 2006 9:41 PM in response to Tim Haigh

I had the same problem last night when I set up my airport. It took an hour to fix it, but I still have no idea about the "NAT" router. Can you tell me about it.

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Answer 4

Tim Haigh

Level 7

24,198 points

Feb 6, 2006 1:54 AM in response to Samuel Wong

I had the same problem last night when I set up my
airport. It took an hour to fix it, but I still have
no idea about the "NAT" router. Can you tell me
about it.

Your issue may be entirely different to the original posters so therefore could you start a new thread if you still have problem however you should provide a full description of your setup i.e make and model of dsl/cable modem/router etc.

NAT Network Address Translation.

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Answer 5

jed Author

Level 2

430 points

Feb 6, 2006 9:55 AM in response to Tim Haigh

Thanks, but the problem has nothing to do with the Zoom Modem, My PB connects fine, and gets an ip of 10.0.0.12 or something along those lines, but always 10.0.0.x. The iMac gets 164.xxx.xxx.xxx and when looking at the internet settings it says the iMac has a "Self Assigned IP Address" Which I have not assigned, it is blank, go to DHCP renew the lease and it is always this 164.xxx.xxx.xxx (It is 164 I think, out here in Germany, miles form the iMac) I have exactly ther same settings on my PB but it gets the 10.0.0.x and connects fine. This "Self Assigned IP Address" is new, and has only happened since 10.4.4 and on the iMac
Other than binning Tiger and going back to OSX 10.3 Cant seem to fix this one

Thanks

Jed

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Answer 6

Feb 6, 2006 4:55 PM in response to jed

Let me explain my situation. I bought Tiger last Saturday and installed into my new hard disk. Everythings were fine at that moment and later I realised I did not set up the print, so I set up the printer via "airport" - that was why I detected other IP addresses and other users within my areas (Because Hong Kong is very small place, you see these things very often).

I started my Mac last night (Monday) and lost connection with my airport. Ok ... I thought I could do it again but no go. I always detected others IP addresses. As far as I know I should use DHCP and the IP address should be something "10.0.1.X". When I detected my IP and do the setup. The airport was working, but still couldn't connect to my Mac (My PC (Windows) was running smoothly with the airport). I'll try it again tonight as I'm at work now. But before that can you give me any suggestions.

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Answer 7

jed Author

Level 2

430 points

Feb 27, 2006 9:25 PM in response to jed

Got info from the http://forums.macosxhints.com and found out that powering off the modem for an hour or so will fix it, and indeed it did. Regards KEv

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Answer 8

Feb 28, 2006 7:01 AM in response to jed

As far as I can gather, the IP address starting 164.xxx.xxx is the IP for connecting to the internet, the 10.0.0.x is for computers on an intranet or network sharing the connection. Maybe the modem is acting as a router and assigning an internal ip for your second computer. (as if both computers were onj at the same time) ??

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