usefulgeek » networking http://www.usefulgeek.com/blog rants, reviews and kind hearted messages from some geeks Mon, 19 Jul 2010 16:48:21 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 Modify Windows XP routing table http://www.usefulgeek.com/blog/2009/08/modify-windows-xp-routing-table/ http://www.usefulgeek.com/blog/2009/08/modify-windows-xp-routing-table/#comments Thu, 27 Aug 2009 02:19:13 +0000 jonmoore http://www.usefulgeek.com/blog/?p=141 Yet Another Related Posts Plugin.]]> During some network changes I’ve found the need to modify the routing table.

To change the default route on Windows XP (and possibly Windows Vista, 2000, etc) you use the route command. The syntax is pretty simple, here is a quick example….

route change 0.0.0.0 mask 0.0.0.0 172.18.12.120

To delete or add routes, simply change the keyword change to either add or delete.

route add 192.168.0.0 mask 255.255.255.0 10.10.0.50

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]]> http://www.usefulgeek.com/blog/2009/08/modify-windows-xp-routing-table/feed/ 0 Check speed of connected link in Linux http://www.usefulgeek.com/blog/2009/07/check-speed-of-connected-link-in-linux/ http://www.usefulgeek.com/blog/2009/07/check-speed-of-connected-link-in-linux/#comments Fri, 24 Jul 2009 21:09:22 +0000 jonmoore http://www.usefulgeek.com/blog/?p=135
  • Linux IPv6 Neighbor Discovery Using ping6 and ip neigh it’s possible to discover other...
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    • Related posts brought to you by Yet Another Related Posts Plugin.]]>     If you’ve ever wanted to check on the status of your Ethernet links, you’ve probably used the ip commands (or ifconfig) to view some basic information.  However, you might have noticed these commands do not tell you what the current link speed is, or other possibly important details.  That’s where ethtool comes in.

    [jonmoore@megaton ~]$ sudo ethtool eth0
Settings for eth0:
Supported ports: [ MII ]
Supported link modes:   10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes:  10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: external
Auto-negotiation: on
Supports Wake-on: g
Wake-on: d
Link detected: yes

    As you can see, ethtool will show you the support modes, as well as the current mode.  From the above example, I’m currently connected at 1000Mb/s at Full Duplex.  Very nice.

    Check out the ethtool man page for more useful commands.

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