1. Latest AE (ac model) running latest firmware (7.7.2)
2. DSL modem from phone company. Don't know if it's bridged I don't control the settings...
3. Yes AE is getting IP via dhcp
4. If I leave dns fields blank it will get the dns from the phone company. But I could put for example OpenDNS in the first field and GoogleDNS in the second and it would still use GoogleDNS.
FWIW I have noticed this behavior for a long time. I don't think it's specific to my AE model or firmware. Not sure what else could cause this though? Thanks for the help!
Please look at the Network Tab in the AE.. is it set to bridge mode?
If so then the DNS setting in the TC is irrelevant. DHCP is being handled by the modem.. all changes must be made on the modem.
Or do you have a double NAT error.. if so the Main modem can still be controlling DNS.
You should bridge the modem and use PPPoE client on the TC.. but you say that is not possible..
Or you must live with the fact that you do not control the network setup.
Ok I'm very confused. According to this I'm not running double NAT:
How to tell if you are using "double NAT"
While every network setup is different, here is a simple way to tell if your computer is on a "double NAT" network:
- Open Network Utility.
- Click Traceroute.
- In the field, enter "www.icloud.com".
- Click Trace.
After starting the trace, look for the line beginning with the number 2. If the address in that line is any IP address in either of the following ranges:
... then your network has multiple layers of NAT.
If I will change it to bridge mode then how can I use my router?
Please do explain I'm eager to learn what I'm doing wrong. I think it's always been like this and Airport Utility sets it up like this by default...
Message was edited by: rick722
Modem is zyxel p-600 series autovolt. ISP is PLDT in Philippines. It's a modem only no wifi included. I don't do the setup on it the phone company does. I might be able to find out how to get into the interface if it's absolutely necessary. It gives a dynamic ip address via dhcp. Let me know if I missed any details thanks!
If it helps this is what the modem looks like:
Message was edited by: rick722
It gives a dynamic ip address via dhcp.
This is what a router does. A router does not have to have wireless capability and it may only have one Ethernet port. Most "modems" these days are really "routers".
Based on the information that you have provided, my opinion would be that In order to work correctly with an AirPort Extreme, the Zyzel p-600 needs to be in bridge mode. There are any number of links on how to do this. See below. Your ISP may have instructions as well.
Once the modem is configured correctly in bridge mode, then the AirPort Extreme must be configured to Connect Using PPPoE......not using DHCP.
On the PPPoE setup page in AirPort Utility, enter your user name with your ISP and your password. Leave the Service Name area blank.
Once the AirPort has been set up, you can go back in and change the DNS settings.
It is not the standard way adsl works but it is possible you are on some other method of connection..
Please post the traceroute for us to see.
So my traceroute to 18.104.22.168 look like this.
Miniray:~ Ray$ traceroute 22.214.171.124
traceroute to 126.96.36.199 (188.8.131.52), 64 hops max, 52 byte packets
1 192.168.2.254 (192.168.2.254) 3.633 ms 0.714 ms 0.667 ms
2 adsl1.mel02.eftel.com (184.108.40.206) 6.826 ms 7.443 ms 6.757 ms
3 te0-1-0-308.core0.mel02.eftel.com (220.127.116.11) 7.183 ms 6.831 ms 7.221 ms
4 ve420.er01.mel01.eftel.com (18.104.22.168) 7.547 ms 8.387 ms 7.115 ms
5 eth2-1.bdr01.syd02.eftel.com (22.214.171.124) 22.017 ms 18.622 ms 18.649 ms
6 as15169.ve223-vpls138.bdr01.syd02.eftel.com (126.96.36.199) 19.923 ms 22.621 ms 20.027 ms
7 188.8.131.52 (184.108.40.206) 18.747 ms 18.394 ms 18.940 ms
8 google-public-dns-a.google.com (220.127.116.11) 19.115 ms 22.314 ms 19.126 ms
And let me go back to the start..
If you always have it use the secondary DNS.. put the google address as the primary and the address you want to use as secondary.. Does that trick the Airport to use the secondary DNS.. ??
If not then please also post a traceroute to whoever you are using for DNS other than google.
If it is slow.. the Airport may simply swap to google because it is faster.. the issue has nothing to do with position it is because the primary dns is not resolving the address quickly enough.
Therefore leave out the secondary DNS and just force it to use the primary.
Ok I found out how to get into my modem interface:
Pretty sure it's already in bridge mode. Pretty sure I can also not change anything in that interface without a modem reset. So I guess nothing else to do there?
For reasons I don't fully understand a few years back the phone company recommended to stop using PPPoE and use DHCP whether with modem or connected directly to my computer. They said they switched to an "always on" connection. At this moment I don't even have a username and password to use with PPPoE. I might be able to get one though what would the difference be if I switched because it does work with the DHCP, although I must admit my connection ***** most of the time...
Here is my traceroute going to google:
Traceroute has started…
traceroute to 18.104.22.168 (22.214.171.124), 64 hops max, 72 byte packets
1 10.0.1.1 (10.0.1.1) 1.480 ms 0.682 ms 1.339 ms
2 dsl.126.96.36.199.pldt.net (188.8.131.52) 34.954 ms 35.396 ms 34.725 ms
3 184.108.40.206.pldt.net (220.127.116.11) 34.556 ms 34.921 ms 33.498 ms
4 18.104.22.168.static.pldt.net (22.214.171.124) 57.399 ms 145.163 ms 68.147 ms
5 126.96.36.199.static.pldt.net (188.8.131.52) 56.154 ms 78.088 ms 56.542 ms
6 184.108.40.206.static.pldt.net (220.127.116.11) 55.086 ms 55.872 ms 96.734 ms
7 18.104.22.168 (22.214.171.124) 79.111 ms 79.636 ms 78.672 ms
8 126.96.36.199 (188.8.131.52) 86.561 ms
184.108.40.206 (220.127.116.11) 83.303 ms *
9 18.104.22.168 (22.214.171.124) 77.497 ms 77.717 ms
126.96.36.199 (188.8.131.52) 78.687 ms
10 * * *
11 google-public-dns-a.google.com (184.108.40.206) 79.696 ms 76.879 ms 77.368 ms
About the dns questions you asked let me make some tests and get back to you...thanks!
For reasons I don't fully understand a few years back the phone company recommended to stop using PPPoE and use DHCP whether with modem or connected directly to my computer.
I don't understand that either, but maybe LaPastenague will.
Your modem seems to be assigning a "private" IP address 192.168.1.1.....not a "public" IP address.
Due to the unusual way that your ISP is operating, there just may not be anything else that you can do.