Need help setting up a hybrid network | ADSL, 3G

L

linuxtechie

Discoverer
Folks,

I have following equipment:

1. Buffalo Wireless Router - Connected to ADSL Modem, flashed with Tomato.
2. CCTV Setup.
3. VOIP Router.
4. HTPC.
5. Dockstar - 3G Client.
6. A DLink Switch.

I would like an arrangement where in I can continue using ADSL net connection as master, but then failover to dockstart's 3g net connection. Yup 1-5 are all connected. I am going to need one more port and hence the switch.

Please advice.

+LT
 
AFAIK, the 3G modem should be on the router, not with the dockstar to enable dual wan failover. but then, i am a novice in this, so some1 with better solution may come too.
 
Does the ADSL modem have a USB port? If yes, then you can use the Dockstar to establish the ADSL connection as well. The dockstar will act as the gateway for your entire network and if the ADSL link fails, it should modify the iptables setup to use the 3G connection and vice versa.

So the gateway IP will be that of the Dockstar always and all the fail-over mechanisms will be handled by the Dockstar. I have not done this, but seems possible, you will need the required scripts to monitor the links and make the modifications on failure of 3G or ADSL.

If you do not have a USB port on the modem, you will need one more ethernet port which the dockstar does not have, maybe can go for a USB Ethernet adapter?
 
varkey said:
Does the ADSL modem have a USB port? If yes, then you can use the Dockstar to establish the ADSL connection as well. The dockstar will act as the gateway for your entire network and if the ADSL link fails, it should modify the iptables setup to use the 3G connection and vice versa.

So the gateway IP will be that of the Dockstar always and all the fail-over mechanisms will be handled by the Dockstar. I have not done this, but seems possible, you will need the required scripts to monitor the links and make the modifications on failure of 3G or ADSL.

If you do not have a USB port on the modem, you will need one more ethernet port which the dockstar does not have, maybe can go for a USB Ethernet adapter?
Click to expand...

Most of the ADSL modems do have a USB port, to work as peripheral device but no USB host support. However it has to be confirmed by the OP.

I do not feel making the Dockstar do the routing would be a wise idea, does it have that much processing power extra at hand, apart from having to run transmission?

--- Updated Post - Automerged ---

Can the dockstar share the net connection on the LAN port? If yes, then also no problem, you can enable dual wan failover.
 
Well, it has a 1.2 Ghz Processor, 512 MB RAM. IMO more than capable of doing everything! :P

It has only one ethernet port, so I dont think you can connect the ADSL modem and do failover directly. You will mostly have to get a USB-Ethernet adapter.
 
varkey said:
Well, it has a 1.2 Ghz Processor, 512 MB RAM. IMO more than capable of doing everything! :P

It has only one ethernet port, so I dont think you can connect the ADSL modem and do failover directly. You will mostly have to get a USB-Ethernet adapter.
Click to expand...

1.2Ghz with 512 MB ram. Wow. should have got one of these.

use varkeys method, its the simpler of the two. if you wanna read on,

Connect adsl modem to wan port of router via LAN cable. connect dockstar to router via LAN port (also enable sharing of net from USB 3g modem to lan port of dockstar). Assign the lan port (to which dockstar is connected) on router as wan port if needed, with wan failover option or make into dmz. ensure that no IP range conflict is there. this way the router does the R&S mainly.
 
Sorry, small correction. Its 128 MB ram. Got confused with the sheevaplug/guruplug. Still I feel its more than enough for the job.

Sent from my ZTE-BLADE using Tapatalk
 
varkey said:
Does the ADSL modem have a USB port? If yes, then you can use the Dockstar to establish the ADSL connection as well. The dockstar will act as the gateway for your entire network and if the ADSL link fails, it should modify the iptables setup to use the 3G connection and vice versa.

So the gateway IP will be that of the Dockstar always and all the fail-over mechanisms will be handled by the Dockstar. I have not done this, but seems possible, you will need the required scripts to monitor the links and make the modifications on failure of 3G or ADSL.

If you do not have a USB port on the modem, you will need one more ethernet port which the dockstar does not have, maybe can go for a USB Ethernet adapter?
Click to expand...

I can try this out. It has a USB port. Probably I can use a powered usb hub for this, so that dockstar is not surged with power. Also I will to updated ipfilters so that only local machines traffic is flowing via 3g for transmission.

vivek.krishnan said:
1.2Ghz with 512 MB ram. Wow. should have got one of these.

use varkeys method, its the simpler of the two. if you wanna read on,

Connect adsl modem to wan port of router via LAN cable. connect dockstar to router via LAN port (also enable sharing of net from USB 3g modem to lan port of dockstar). Assign the lan port (to which dockstar is connected) on router as wan port if needed, with wan failover option or make into dmz. ensure that no IP range conflict is there. this way the router does the R&S mainly.
Click to expand...

This is my current arrangement. However I didn't get the part "Assign the lan port to which to dockstar is connected on wan port as needed" I am using tomato firmware. Can you explain more.

+LT
 
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