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How does network setup this work

S

SoF Chef

Junior Member
I have a cable modem, a Linksys telephone router for VOIP and a Belkin wireless router for the laptop and family room pc. My original setup had the wireless router getting a local ip from the voip router and the voip router getting it's ip from the cable modem. This worked, but I couldn't (for instance) access the notebook from a pc connected to the first (voip) router.

Then I found this setup:

http://f2.pg.briefcase.yahoo.com/liquidbrainchild

on this forum:

http://www.vonage-forum.com/ftopic7668.html

and tried it out. I turned off dhcp on my wireless and connected everything exactly the same as in the drawing. The office pc is directly connected to the wireless router. It works great, everyone gets a local ip from the wireless router and the voip router functions as it should.

I just don't understand why it works. I want to understand. I always thought ethernet ports were one directional but ... are they?

If there's a good tutorial on networking that can help, a reference to that would be fine.

Thanks in advance.
 
Your 2 DHCP devices were fighting each other. There'd be a conflict if one assigned resources the other gave away.. (There is a way for one DHCP server to follow the other, but most consumer grade routers doesn't have that option.)

The other problem you may have is Quality of Service .. The First Router may not understand that priority should be given to your phone instead of P2P, Movies, Games, Etc.

Also the VOIP router should have DNS, NAT, DHCP all off, you're using the VOIP "router" as a switch.

If you're new to networking, and you want a professional grade firewall that understands QoS, and you have a old computer you don't want, try Smoothwall. It's free and has a patch for QoS.
 
I'm not very knowledgeable w/ networks, but I'm curious why on the RT31PT the WAN port is patched to a LAN port. Shouldn't it be patched to a LAN port on the front Router?
 
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