RJ45 to RJ11

[newbuilder]

I am working on a solution for the MER transfer that Sky is doing and I am almost there.

Last night I managed to get my Netgear DGN2200 working on the back of the Sagem router but the DGN2200 needs to know it has an Internet connection so I am trying to create the following:

How to change the DHCP server subnet of a NETGEAR Router?

with the modem representing Sky's "required" router.

Now I really need a RJ45 end to connect to the SAGEM and the other end of the same cable to be RJ11 to connect to the Netgear DGN2200.

There is no connection if I simply put the RJ11 in the RJ45 Sagem LAN1 socket.

This is all so I can get VPN.

Anyway, does anyone know the wiring diagram for this?

Thanks.

[IWasNotTheEnemy]

You connect the 2 routers using Ethernet - you don't go from the Sky router into the ADSL socket on the Netgear

[newbuilder]

This does not work as the Netgear needs the WAN IP address.

Please see the link in the original post, it needs to be connected to the internet port.

[Isitme]

I don't think the link you give is referring to an ADSL router. If you look carefully at the illustrations 3, 4 and 5 you will see the type of router is a WGR614, which is a standard or cable router. What you are trying to do will not work with an ADSL router, which has a modem built in to it. As already stated you can only connect an ADSL router by ethernet, which is in fact bypassing the built in modem.

[newbuilder]

I can get the router to work with the RJ45 to RJ45 connection using the LAN links but the VPN inbuilt into the NEtgear does not work. I think it need the inbuilt modem to work.

I therefore am screwed when MER comes along unless someone can work out how Sky make it authenticate.

[Scubbie]

For the VPN to work, the router must connect directly to the Internet.

Using the guide I compiled to connect the DGN2200 to the Sky router, the Sky router is connecting to the Internet.

If you had a Cable router and connected it to the Sky router via the WAN Ethernet port, then placed it in the Sky router's DMZ, then the Cable router would treat that connection as an Internet connection, control your Home Network (providing everything connects via the Cable router) and the VPN should work just fine.

[newbuilder]

yip, but it is not a cable router!

Oh well, never mind.

[Scubbie]

yip, but it is not a cable router!

Oh well, never mind.

We know that you don't have a cable router. Since you appear to be unable to connect via PPPoA now, it seemed a logical to show how you could get it working, but with a new router.

[newbuilder]

It has just started connecting by PPPOA as we speak. So maybe I have been spared a little longer. Do you know of any Cable modems simlar to the DGN2200 that has an idiot proof VPN integrated system?

[warrmr]

There are quite a few VPN routers out there, I have an old FVS124g with dual WAN that I used when on cable that was a nice little unit. But that is now old and out dated so you may want to have a look at the Netgear business range of routers in the pro safe series.

One thing I have found is most things that require inbound connections do not like double NAT, Perfect example of double a Double NAT issue. I have my sky modem as the primary modem with Wireless and DHCP off this then backs into a Cisco ASA5505 security appliance. Hanging off the back of that is my internal network including a Windows Home Server 2011(WHS).

If you have both the ASA and Sky router in routed mode I could not get the web page of the WHS to display from an external connection. you could see in the event log of both appliances that the packets were hitting the rule and being passed but it would not reach the WHS.
If I disabled routing and enabled the ASA as a transparent firewall in bridge mode then traffic will pass through it and it will still act as a hardware firewall.

Outbound access is never a problem with double NAT but as above inbound connections can be temperamental.