Multiple adapter on same network

[Twinkie]

I have an old Linksys Wireless G card and a new Rosewill N stick connecting to the same router. What is the behavior of this setup? Does it go faster than one alone? What about bridging?

I tried Googling the answer for this one, but all I found were results from Windows 95, all outdated. My OS is Windows 7 Ultimate 64 bit.

 

[slacker3]

Theoretically, you could assign each network card it's own IP, adjust the routing table accordingly and download stuff a little bit faster. But i doubt that would make much sense..

My suggestion would be to use the new card to connect to the accesspoint and just keep the other one to play around with it (packet sniffing, etc.).

 

[Twinkie]

Yea, I thought that. The card is not going as fast as it should, only 65mbps (still faster than my old card).

 

[Mr. DOS]

In my experience, Windows 7 will attempt to use whichever adapter connects first as the primary adapter, regardless of speed. This is really problematic for me on occasion when I need to quickly transfer a file off of or onto my laptop - I'll plug in the Ethernet cable, but it'll still try to route through the wireless adapter first and only fall back to wired if it can't find a route to the remote host through that adapter.

--- Mr. DOS

 

[slacker3]

adjust the metric:

http://windowsitpro.com/article/articleid/27315/what-is-windows-xps-automatic-metric-feature.html

http://support.microsoft.com/kb/299540

(don't know if that works on win7)

 

[steronius]

I had two NIC on the same network for a couple years thinking it was good, one day i disabled one and my XP box was slightly faster at surfing, so now i only use it for a virtual machine bridge for special projects.

 

[Twinkie]

How can I reach higher speeds? The USB adapter is a Rosewill RNX-EasyN1, rated at up to 150 mbps. It is connecting to a Linksys WRT160Nv3. It is on a N/G network setting.

 

[slacker3]

How can I reach higher speeds? The USB adapter is a Rosewill RNX-EasyN1, rated at up to 150 mbps. It is connecting to a Linksys WRT160Nv3. It is on a N/G network setting.

i like wlan stuff..

your USB adapter (150Mbps) may limit the performance of your NIC (600Mbps?), but i'm not sure on that..
http://en.wikipedia.org/wiki/IEEE_802.11n


but you can tune your WiFi:
try another (less or unused) channel (there are only a few non-overlapping channels):
http://www.radio-electronics.com/info/wireless/wi-fi/80211-channels-number-frequencies-bandwidth.php


if there are a lot of wireless networks in your neighborhood switch to another channel, and adjust fragmentation
http://www.wi-fiplanet.com/tutorials/article.php/1468331

linux:

frag[mentation_threshold]   
Fragmentation allow to split a IP packet in a burst of smaller
fragments transmitted on the medium. In most cases this adds overhead, but in very noisy environment this reduce the error penalty. This parameter set the maximum fragment size, a value equal to the maximum packet size disable the scheme. You may also set this parameter to auto, fixed or off.  
 Examples :  
       iwconfig eth0 frag 512  
       iwconfig eth0 frag off

if you have an rather good connection quality, set JUMBO frames (if supported):
http://en.wikipedia.org/wiki/Jumbo_Frames

 

[Smith6612]

]if you have an rather good connection quality, set JUMBO frames (if supported):
http://en.wikipedia.org/wiki/Jumbo_Frames

Smith <3's Jumbo Frames! I use them on my Gigabit network here.