Can't see modem admin panel when behind AirPort Extreme

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firefuze

510 posts

Ultimate Geek

#154550 31-Oct-2014 11:21

Hi all,

I've got an ADSL connection with a Vigor 130 using PPPoA/PPPoE pass through with an AirPort Extreme controlling the modem through its 'PPPoE' connection

The modem default IP is 192.168.1.1 and my AirPort is setup on 192.168.0.2~200

The AirPort is acting as the DHCP

How can I configure the modem or router so I can see the modem admin panel? I'm having ongoing connection issues with my DSL connection and really need to be able to see the modem stats and logs to help troubleshoot.

Thanks in advance

chiefie

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5877 posts

Uber Geek

Retired Mod

Trusted

Lifetime subscriber

#1165677 31-Oct-2014 11:28

Change your AirPort DHCP IP range to be in the same subnet 192.168.1.x but exclude the 192.168.1.1 IP, and ensure the ADSL modem is not acting as DHCP (if it has this function).

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jnimmo

1097 posts

Uber Geek

#1165730 31-Oct-2014 11:54

You mean full bridge mode? I don't think you can access the admin panel in this setup, something I didn't realise until I tried it myself. Bit annoying

firefuze

510 posts

Ultimate Geek

#1165745 31-Oct-2014 12:07

chiefie: Change your AirPort DHCP IP range to be in the same subnet 192.168.1.x but exclude the 192.168.1.1 IP, and ensure the ADSL modem is not acting as DHCP (if it has this function).

Thanks, When I update the AirPort to use 192.168.1.2~.200 it (AirPort) assigns itself 192.168.1.1 and unable to access modem admin panel.

firefuze

510 posts

Ultimate Geek

#1165747 31-Oct-2014 12:08

jnimmo: You mean full bridge mode? I don't think you can access the admin panel in this setup, something I didn't realise until I tried it myself. Bit annoying

Yes full bridge mode, Did you try this with the DrayTek also?

trig42

5810 posts

Uber Geek

ID Verified

#1165763 31-Oct-2014 12:13

firefuze:
chiefie: Change your AirPort DHCP IP range to be in the same subnet 192.168.1.x but exclude the 192.168.1.1 IP, and ensure the ADSL modem is not acting as DHCP (if it has this function).

Thanks, When I update the AirPort to use 192.168.1.2~.200 it (AirPort) assigns itself 192.168.1.1 and unable to access modem admin panel.

Can you connect directly to the modem and change its IP address to something other than 1.1? like 192.168.1.254?

jnimmo

1097 posts

Uber Geek

#1165768 31-Oct-2014 12:15

Yeah with the DrayTek. Kind of preferred my old setup of half bridge mode with a different modem so I could still see the ADSL stats etc but had the Airport doing the NAT.
You have to remember PPPoE is almost like setting up a tunnel between you and the ISP, so the modem really becomes invisible to the Airport once the connection is established.

On more customisable routers you would be able to setup a static route or something to send traffic to the DrayTek's IP directly out the ethernet interface instead of through the PPP connection, but not with Airport.

Ragnor

8219 posts

Uber Geek

Trusted

#1165799 31-Oct-2014 12:29

Yeah the Airport needs a static route to get to the modem's network, doubt Apple give you this option....

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firefuze

510 posts

Ultimate Geek

#1165807 31-Oct-2014 12:35

Appears that is the case, regardless of IP address of modem it isn't visible. Very frustrating.

Half bridge isn't an option as I have several AirPorts around the house to create a roaming network (all connected via Ethernet) At least from what I recall it wouldn't work correctly hence I ended up going with a Draytek due to the full bridge/PPPoA PPPoE pass-through feature. Maybe ill try it again.

If my DSL connection would just work I wouldn't need to touch my setup at all!

firefuze

510 posts

Ultimate Geek

#1165808 31-Oct-2014 12:37

jnimmo: Yeah with the DrayTek. Kind of preferred my old setup of half bridge mode with a different modem so I could still see the ADSL stats etc but had the Airport doing the NAT.
You have to remember PPPoE is almost like setting up a tunnel between you and the ISP, so the modem really becomes invisible to the Airport once the connection is established.

On more customisable routers you would be able to setup a static route or something to send traffic to the DrayTek's IP directly out the ethernet interface instead of through the PPP connection, but not with Airport.

So I understand this, seeing as my networking knowledge isn't amazing. The AirPort treats that modem IP address as a local IP (as it is) therefore does not allow/direct it through the routers WAN port where the modem is actually interfaced to, it expects that modem address to be attached to one of the Ethernet ports?

DrCheese

382 posts

Ultimate Geek

Trusted

#1166863 2-Nov-2014 13:11

I have an Airport Time Capsule in full bridge mode to a Zyxel modem/router (192.168.1.1). My Mac is connected via Ethernet to the Airport which uses DHCP to issue addresses in the range 192.168.2.XXX. The Zyxel has DHCP turned off.

Try this:

1. Set up a separate Ethernet connection in your network preferences (mine is called Ethernet 2).
2. The connection should configure IPv4 manually.
3. Set the IP address of the computer to 192.168.1.2
4. Subnet 255.255.255.0
5. DNS 192.168.1.1

To access the router admin page, connect your computer to the LAN port on the Vigor 130 and make sure the Ethernet 2 connection is active. This will disconnect your wifi network, of course.

D.