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Question about Dual LAN motherboard

J

JE78

Golden Member
I bought a EVGA x58 motherboard a few months ago with dual LAN connections on it. A few weeks ago my internet started acting up with this issue where data would just stop, it would say on my computer that I have a connection and all the lights on the modem were fine but I couldn't get any data, the only cure was to reset the modem. I currently have my computer hardwired into a Dlink 2310 wireless router, my wife's laptop runs off the wireless as does my PS3. Of course calling the cable company got me no where, they're excuse was it's my router. A few nights ago while gaming I kept getting disconnected so I ended up bypassing the router and the last few days I've seen no problems other than my wife complaining. Today I tried to hook the router back up but using the 2nd LAN on my motherboard. So right now my setup looks like this. I have a LAN cable going from the modem to the top LAN port on my mobo, then I have a LAN cable going from the 2nd LAN port on the mobo to the WAN port on the back of the router.

Now my problem is my internet works fine but my wife's laptop can't connect to the internet. It can connect to the router but not the internet. Just wondering if there's any other solution to this. Thanks.
 
So you inserted your PC between the Modem and the router? First that is not a good configuration to be in. 2) your PC is not a router and as such will not route the other routers connections to the Internet. The solution is: your pc and all other devices should be attached to the router (wired or wireless), and the router attached to the modem via the WAN port. If this not working well then the router *might* be bad.
 
Thanks, I was hoping there was a way to get it to work but I guess I'll have to go back to the old way.
 
There is a way, you have to set your pc up as a firewall, and to route out of it. Its more a pain in the butt, but essentially you could do it.
 
Tbirdkid said:
There is a way, you have to set your pc up as a firewall, and to route out of it. Its more a pain in the butt, but essentially you could do it.
Click to expand...

thats a kludgy, half-assed solution.

"data would just stop" is not a technical description of any problem. can you ping other computers connected to the router, the router itself, the modem, or the Internet when the issue occurs? can you access the router and modems management interfaces to further gather information? what make/model modem? do you own the modem or is it rented through the ISP?

reconfigure things how they were originally and provide technical details of the issues when they occur. if things have been working fine through the modem, i would guess something with the router.
 
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JE78 said:
Thanks, I was hoping there was a way to get it to work but I guess I'll have to go back to the old way.
Click to expand...

Try a new router. If the connection is freezing up but connected directly to the modem gets you access, the odds are there is something not right with the router.
 
Thanks but I'll just mess around with some of the router settings and see if I have any luck there.
 
If your modem has a DHCP server (my cable modem does) it might be able to serve ip's to more than one device. If this is the case you'd want to run the cable from your second LAN port to one of the LAN ports on your router (not the WAN port) and disable the DHCP server on your router. The downside to this configuration is that each device is connected directly to the internet without any firewall.

You probably need to enable ICS on your computer to bridge the two ethernet connections.
 
kornphlake said:
If your modem has a DHCP server (my cable modem does) it might be able to serve ip's to more than one device. If this is the case you'd want to run the cable from your second LAN port to one of the LAN ports on your router (not the WAN port) and disable the DHCP server on your router. The downside to this configuration is that each device is connected directly to the internet without any firewall.

You probably need to enable ICS on your computer to bridge the two ethernet connections.
Click to expand...
No, no, and no.
 
jlazzaro said:
thats a kludgy, half-assed solution.
Click to expand...

So you think my linux box running squid proxy server and a firewall using iptables is a kludgy, half-assed solution?

I get your point, a router is a router and a desktop is a desktop, but with the right configuration a dedicated desktop can become a very powerful router.
 
kornphlake said:
If your modem has a DHCP server (my cable modem does) it might be able to serve ip's to more than one device. If this is the case you'd want to run the cable from your second LAN port to one of the LAN ports on your router (not the WAN port) and disable the DHCP server on your router. The downside to this configuration is that each device is connected directly to the internet without any firewall.

You probably need to enable ICS on your computer to bridge the two ethernet connections.
Click to expand...

There is no reason to use his PC for ICS when he has a router already. If the router is defective, the router can be replaced. Also the router would dole out DHCP info that would make the router the gateway / dns / etc. Making an supported config like this work is way more work than just 'doing it right.'
 
kornphlake said:
So you think my linux box running squid proxy server and a firewall using iptables is a kludgy, half-assed solution?

I get your point, a router is a router and a desktop is a desktop, but with the right configuration a dedicated desktop can become a very powerful router.
Click to expand...
using a dedicated machine (preferrably not windows) for this purpose is completely valid, and adds mucho functionality as you already know. however, using a primary workstation (regardless of the OS) is asking for trouble.
 
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Thanks guys. I'm going to try and adjust some of the router settings and see if that gets me anywhere. If not I'll just try a new router.
 
So you think my linux box running squid proxy server and a firewall using iptables is a kludgy, half-assed solution?

I get your point, a router is a router and a desktop is a desktop, but with the right configuration a dedicated desktop can become a very powerful router.

That is my thought also. Sure, a router is setup to do a job and a good job, however, if you want to you can do it is all I am saying. You never know why people want to do certain things, so taking all thoughts into account is the best way to go.
 
imagoon said:
There is no reason to use his PC for ICS when he has a router already. If the router is defective, the router can be replaced. Also the router would dole out DHCP info that would make the router the gateway / dns / etc. Making an supported config like this work is way more work than just 'doing it right.'
Click to expand...

I was only suggesting a configuration that would work, not trying to say it was right or wrong. I assume the guy is between paychecks or he's ordered a new router but it won't arrive for a couple days. A stopgap solution is to use his PC for ICS so his wife can use her laptop while he figures out what the problem is.

It's not a good solution in the long run without a hardware firewall, I believe I made that point in the last line of my post.
 
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