dynalink rta1320 half bridge setup for Smoothwall Using VPN

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TeckPriezt

3 posts

Wannabe Geek

#62174 31-May-2010 20:10

Hi All

I hope someone can help me I've been trying to setup a VPN between me an another Smoothwall Machine but found the Static IP Telecom gave me needs to show up on the Red interface of my Smoothwall machine (this is a 10/100 nic the I have connected to the modems nic).

Now I have asked in the Smoothwall fourms and found that the modem needs to be in half bridge mode, but I can't for the life off me get it working.

Smoothwall machine has PPPoE on the red interface and the username, password and DNS servers setup in it's PPP settings (not much to that part so I don't think it's anything there).

The modem on the other hand I check it so it is using PPP IP extension (it's name for half bridge) but then it askes for the user name and password and thats where I think it's going wrong as it's not working as a modem if it needs that.

Have found plenty of people who have got this modem working with smoothwall like I need it, but don't tell how to do it.

If this modem realy can't do what I need it to do can someone recomend a modem that can work the way I need it.

Ragnor

8222 posts

Uber Geek

Trusted

#336844 31-May-2010 23:32

ADSL in NZ is largely PPPoA, the Dynalink 1320 does PPPoA Half Bridge (called IP Extension in the admin ui) and when this is enabled it will give the external ip address to the Smoothwall box via DHCP.

You will not be able to use PPPoE and will not need the username and password in Smoothwall.

I can't remember what options Smoothwall has for the "connection method", but it should be something like DHCP or Obtain Automatically.

Also Linux tends to not like it when the default gateway is on a different subnet to the external ip address, you may need to add a static route.

For details see here:
http://www.wlug.org.nz/Half%20bridge%20with%20PPPoA

TeckPriezt

3 posts

Wannabe Geek

#336973 1-Jun-2010 11:59

Ok just so I understand the DHCP part I was using a static 192.168.1.0/31 network address for the link between the ADSL2+ router and the red interface on the smoothwall do I need to change this so the ADSL2+ router has it's DHCP service turned on or doesn't it matter?

Also I had my static IP (and DNS servers) setup on the ADSL2+ router should I change this to DHCP (I still get the same IP regardless of what why this is setup) or again does it even matter?

Ragnor

8222 posts

Uber Geek

Trusted

#336984 1-Jun-2010 12:27

The way it works is when the RTA1320 has IP extension enabled it will assign the external isp provided address via DHCP, so yes I imagine you need DHCP turned on in the Dynalink RTA1320.

Also you should set the DHCP lease time in the dynalink to something short say 30min, so if/when your ADSL connection is reset (or reconnects for whatever reason) and you get a different isp assigned ip address it will be populated through to the Smoothwall red interface fairly quickly.

The modem setup of the guide here might be useful to you
http://www.ben.geek.nz/2006/11/adsl-routing-solution-in-detail/

The router setup part will obviously be different as the guide is using Tomato on a WRT54GL as opposed to Smoothwall.

Behodar

10508 posts

Uber Geek

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Lifetime subscriber

#337099 1-Jun-2010 16:59

The setup guide was very good; I've been wanting to offload the routing to another device for a while now but didn't know that it was possible! Thanks to Ragnor for the link, and of course to Ben for writing a very informative post :)

TeckPriezt

3 posts

Wannabe Geek

#337103 1-Jun-2010 17:03

Sweet worked great, didn't even need to setup a static route for it.