Using own router with Sky ADSL

esuhl

I've been helping a friend set up his LAN at his home.

How can I set up his Sky router (SR102) so that it is ONLY used as a broadband modem, and is connected to a Draytek Vigor2860ac router which would handle everything on the LAN side?

I'd want DHCP running on the Draytek router, but can't find a way to disable it on the Sky router. :-/

Also, should I be connecting an Ethernet port on the Sky router to the WAN2(Giga) port on the Draytek router, or to one of the GigaLAN ports?




(It's the 2860n model pictured, but the ports are identical.)

debitcardmayhem

If you disable wireless on the Sky carp , and enable DHCP on the vigor, and connect all other ethernet cables to the vigor you should be good to go , I also think that you should connect the Sky one to the WAN2 port and set up the vigor wan2 to have a fixed address for the subnet on the Sky box.
eg if sky router is 192.168.x.y then set the vigor to be 192.168.x.z and set the dhcp to 192.168.x.z+1 to z+40(say).
Never experienced Sky, thank goodness, but this should be OK...
Edited basically that way the Sky won't be asked for DHCP and the Vig should satisfy it , and the Sky sheyet will see them as fixed addresses

debitcardmayhem

Another thought of course you could set the Vigor up with its own subnet, but still have its wan port as a subnet of the sky box.

esuhl

Thank you both for your replies! :beer:

debitcardmayhem wrote: »

If you disable wireless on the Sky carp , and enable DHCP on the vigor, and connect all other ethernet cables to the vigor you should be good to go , I also think that you should connect the Sky one to the WAN2 port and set up the vigor wan2 to have a fixed address for the subnet on the Sky box.
eg if sky router is 192.168.x.y then set the vigor to be 192.168.x.z and set the dhcp to 192.168.x.z+1 to z+40(say).

Other than a slightly different DHCP range, that's exactly what (I think) I tried, but it didn't work. I had to leave, so I didn't get a chance to troubleshoot.

Wouldn't I need to disable DHCP on the Sky box before enabling in on the Vigor?

debitcardmayhem wrote: »

Another thought of course you could set the Vigor up with its own subnet, but still have its wan port as a subnet of the sky box.

That sounds like a solution... but... Could you possibly elaborate with a simple example as to how I'd do that in practise?

Oh -- and does anyone know the relationship between the WAN2(Giga) ports and the other "normal" Ethernet ports?

debitcardmayhem

esuhl wrote: »

Thank you both for your replies! :beer:



Other than a slightly different DHCP range, that's exactly what (I think) I tried, but it didn't work. I had to leave, so I didn't get a chance to troubleshoot.

Wouldn't I need to disable DHCP on the Sky box before enabling in on the Vigor?



That sounds like a solution... but... Could you possibly elaborate with a simple example as to how I'd do that in practise?

Did I reply with my two faced hat on ?:rotfl:
No you don't need to disable DHCP on the sky box since if it has no connections either WiFi / Ethernet (other than the Vigor) it will never see DHCP requests.
Did do something similar for the local pub , set up the second router to use Wan as IP connected with fixed ip from first router/modem and it then served all DHCP requests from its own eg.

Original router was 192.168.1.1
Second router was to be served from that (rather than from an ISP, the first router is effectively the ISP and it gives it an address of 192.168.1.x) with an ip address of 192.168.1.2 (arbritary number)
Set the second router with its own DHCP server with a range address of (say)192.168.2.2-64, and its own lan address as 192.168.2.1 Obviously the second router is the only one with wireless enabled,and with all ethernet cables in it and its SSID was something meaningful eg PUBLAN, but change that to something meaningful to your friend.

The first router does NAT to the WWW via the ISP, but all it sees is requests to/from 192.168.1.2. The second router does NAT from its connected devices to the WWW via the ISP i..e. router 1 .

The only DHCP request the first router will see from its own wireless (disabled) and its own ethernet ports (which is of course possible, but why would you in this case).

If you are confused so am I, tired and suffering from recalling pub example after being there all day :beer:
If needed will try to clarify tomorrow., and will look for the manual for the Vigor (a good piece of kit btw)

debitcardmayhem

Looks like its pages 96/7 in the manual http://www.draytek.co.uk/support/downloads/vigor-2860
Call back if you are stuck .....

Pages 148--- for Lan config

esuhl

debitcardmayhem wrote: »

Did I reply with my two faced hat on ?:rotfl:

Ohhhh! It's been a long day!

debitcardmayhem wrote: »

No you don't need to disable DHCP on the sky box since if it has no connections either WiFi / Ethernet (other than the Vigor) it will never see DHCP requests.
Did do something similar for the local pub , set up the second router to use Wan as IP connected with fixed ip from first router/modem and it then served all DHCP requests from its own eg.

Original router was 192.168.1.1
Second router was to be served from that (rather than from an ISP, the first router is effectively the ISP and it gives it an address of 192.168.1.x) with an ip address of 192.168.1.2 (arbritary number)
Set the second router with its own DHCP server with a range address of (say)192.168.2.2-64, and its own lan address as 192.168.2.1 Obviously the second router is the only one with wireless enabled,and with all ethernet cables in it and its SSID was something meaningful eg PUBLAN, but change that to something meaningful to your friend.

The first router does NAT to the WWW via the ISP, but all it sees is requests to/from 192.168.1.2. The second router does NAT from its connected devices to the WWW via the ISP i..e. router 1 .

The only DHCP request the first router will see from its own wireless (disabled) and its own ethernet ports (which is of course possible, but why would you in this case).

If you are confused so am I, tired and suffering from recalling pub example after being there all day :beer:
If needed will try to clarify tomorrow., and will look for the manual for the Vigor (a good piece of kit btw)

No -- that's not confusing. I think I understand you completely! Thanks very much!

I've never done anything involving multiple subnets, so it's all a bit new to me. Just so I can get the concept/terminology right, am I using the new router as a network bridge to connect to the Sky router...?

kwikbreaks

That Draytek appears to have ADSL and VDSL modems so have you considered using it instead of the Sky provided box rather than just with it and having double NAT regardless of solving the multiple DHCP servers? This may contravene their T&C but I don't see how they'd find out.

There is a tutorial on how to discover the login credentials using wireshark here - https://www.daniscross.co.uk/2014/11/use-router-sky-broadband/

TBH I never use an ISP that did either prohibit or make it difficult to use your own kit as every ISP provided router I've ever had has been pure dross.

Heedtheadvice

I too was wondering what you are trying to achieve!

If it was something simple like just getting more Ethernet ports available then read on!

I was quite concerned that Sky's latest router hub (ADSL) comes with only two ports. Sky will not support third party equipment (fair enough) but are also obstructive in providing information to be able to use other routers (by policy we are all told by Sky). I understand there are methods to gain access to one's username and password.

However other routers can be connected to a Sky Ethernet port and provided there is not an IP address clash and the additional router has DHCP disabled all seems to work fine. There is a tutorial based upon the BT home hubs if anyone is interested.
http://unixetc.co.uk/2014/03/04/reuse-a-spare-bt-home-hub-as-a-wireless-access-point/
This enables two WiFi channels to be used, extend your coverage, but also use the extra Ethernet ports. All address handling is done by the Sky hub.

Maybe not what you want esul but others possibly can benefit from the information.

One downside of that approach is that some of the control facilities on the Sky box are poor whereas the BT box and some others allow time controls disabled access for specific and individual devices. Sky's control (parental settings etc.) good though it might be only allows global settings.

Rubidium

Sky fibre does not require a username and password, it uses DHCP client option 61 to authenticate. Google "sky dhcp client option 61" to see how to configure other manufacturers routers.

Heedtheadvice

Oh dear the day had hardly started and I missed that important point!! Thanks Rubidium. All I saw was ADSL in the title!

But as mentioned by kwikbreaks using another router on their fibre invalidates the Sky T's and C's so risky.