Problem with Time Capsule as DHCP server

The WAN port ID should be on a different sub-net than the LAN side.

Usually the WAN IP is set by your ISP.

Ie . WAN 99.123.72.12 LAN 192.168.XXX.YYY

192.168.XXX.YYY addresses can not be globally routed.
That's why they are safe for internal network use.

Yes. Set them to different ranges.

(it's me, maroudi, just had to get another apple id).

I finally made it. For people with similar problems, here is a working solution:

- Set TC and your router to another IP subnet. I used 192.168.1.1 for the router and 192.168.1.2 for the time capsule.

- Set the DHCP range to 192.168.0.x - 102.168.0.y

You might get a 'Double NAT' warning from the AP Utility, but nevermind. If you want to use some port forwarding and want TC do it instead of your router, do following:

- First (on the router) set the default server (also called DMZ server at Netgear) to the IP of your TC (in my case 192.168.1.2).

- Then all inbound request get forwarded to your TC. Then set your Port Mappings on the TC at NAT settings.

NOTICE: Not sure, but it seems when you set Port Ranges like "17,39-50", AP Utility accepts that, but after updating it messes up the TC (AP Utility won't find the TC, only routing, internet, wireless works). I had to reset the TC (small button on the rear, pressed about 5 sec). I ran into this twice, but did not care to reproduce it to get certain.

By the way, AP Utility can save the configuration of your TC in a file for later reinstalls. Just hit File->Save a copy as...

In the end, I was able to replace every feature I needed from my dsl wireless router and use it as a dsl modem only now. If someone (like me) liked the automatic dyndns updates, there are clients to install that do the same. Check out DynDNS' site.

If you have any questions regarding these issues, feel free to contact me! I keep subscribed to this topic.

try useing PPPoe Instaed Becuse i Had The Problom With Dhcp and it dint work for me it was connected but just couldent get the servers to acully get online so whoever haves trouble useing dhcp and haves dsl like at&t go with PPPoe

Maroudi, i am trying to do the same thing. Use the ISP given router as just a adsl router but want the timecapsule to assign all the ip adresses for the LAN. Can you help me find the right settings for the router and the timecapsule.

The dsl router has 3 dns settings: off/DHCP server and DHCP relay. I am guessing i need to chose DHCP relay because that is the only option where i can tell it an addrress for the DHCP server (which i guess i will set to the address from my airport).

Then what setting do you chose on the TC: 'share a public ip address' or 'distribute a range of ip addresses'? also, what settings do you chose for 'ip address', 'router address' and 'dns server'. Given you want the TC to act as main router, all these should be its ip address no?

p

I dunno what 'DHCP relay' means, but I think you can turn off DHCP on your router completely. A DHCP advertises itself over the network, so no need to specify it's IP address. That's also why you can't/shouldn't have 2 DHCP servers on your network.

The TC should be set to 'share a public ip address' (the one with DHCP and NAT). IP address of TC should be e.g. 192.168.1.2. 'Router address' should be the address of the router. If you can, set it to 192.168.1.1. DNS server should be the DNS servers of your ISP, or the IP of your router (if the ISP's DNS servers are already specified there).