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Wake on LANFew days ago I had to go from work to home just to turn on my desktop computer. Now when I have possibility to remote login to my router I tried to get Wake-On-LAN working. My desktop PC has 3 network cards:
I installed “ethtool” and started to checking which card support WOL. First tested was 3Com one:
root@home:~# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 10Mb/s
Duplex: Half
Port: MII
PHYAD: 24
Transceiver: internal
Auto-negotiation: on
Current message level: 0x00000001 (1)
Link detected: no
As you see — no WOL here.. So I build “tulip” module and checked SMC card: root@home:~# ethtool eth1 Settings for eth1: No data available It’s so old card that I was not suprised that it does not support WOL. Next step was rebooting machine, enable onboard LAN and enabling two other options in BIOS: Wake on Onboard LAN Wake on PCI card Started Linux and started ethtool:
root@home:~# ethtool eth2
Settings for eth2:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: d
Current message level: 0x00000001 (1)
Link detected: yes
And that card support WOL :) So I retired 3Com card and now VIA-Rhine is my default NIC. I added one line to /etc/init.d/hrw-misc: ethtool -s eth0 wol pumbg to get WOL turned on on each reboot. On router I installed “wol” package and created one line script “/sbin/wake-home”: wol -i 192.168.1.255 xx:yy:zz:aa:bb:cc where “xx:yy:zz:aa:bb:cc” is MAC address of desktop NIC. Thanks goes to Jimmy for his entry in blog. Related posts: 2 comments to Wake on LAN |
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Copyright © 2009 Marcin Juszkiewicz - All Rights Reserved |
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Did you ever find a way to send a Wake on LAN from the Zaurus to your home computer?
Closest I’ve gotten is this shell script, but it needs arp or a nc with udp broadcast:
#! /bin/sh # Usage: wake [] # # can be a host name or a dotted-quad IP address. # If the is not given, it is taken from ethers(5). # For this to work, if you give a host name as first argument, ethers # has to contain host names (as opposed to IP addresses). # # Unless you have it already, you can build your ethers file like this: # # nmap -sP -PI 192.168.1.0/24 # prepare ARP cache with a ping-sweep # arp -a | awk '$5 == "[ether]" { printf("%s\t%s\n", $4, $1); }' \ # | sort >>/etc/ethers # # The 'magic packet' consists of 6 times 0xFF followed by 16 times # the hardware address of the NIC. This sequence can be encapsulated # in any kind of packet; I chose UDP to the discard port (9). if [ $# = 1 ]; then ETHER=`awk "/$1/"' { gsub(":", "", $1); print $1; exit; }'/etc/ethers` if [ -z $ETHER ]; then echo "$0: host $1 is not in /etc/ethers" >&2 exit 1 fi else ETHER=$2 fi ETHER="${ETHER}${ETHER}${ETHER}${ETHER}" # 4 x MAC ETHER="FFFFFFFFFFFF${ETHER}${ETHER}${ETHER}${ETHER}" # Preamble + 16 x MACa ### doesn't work on OZ because nc, arp suck... :( ## probably has syntax errors too, haven't checked on real linux yet. ## Inject into ARP table arp -s 192.168.0.1 `awk "/$1/"' { gsub(":", "", $1); print $1; exit; }'/etc/ethers` ## netcat to start machine echo ${ETHER} | nc -b -u -p 7G: I never tried to wake my desktop from Zaurus - they are not in the same network.
If I use USB networking then desktop must be ON to be able to connect with Zaurus.
If I use WiFi card then all packets goes through my router/WAP.
I don’t have Ethernet card for Zaurus to be able to wake machine from Z.