Editing User:DarkShadow/Other Crap (section)

==DD-WRT==
===Radio Temps===
 echo eth1=$((`wl -i eth1 phy_tempsense|awk {' print $1 '}`/2+20))
 echo eth2=$((`wl -i eth2 phy_tempsense|awk {' print $1 '}`/2+20))

===accessing different subnet===
''Phuzi0n'': First off, this will only work if the router that was reset is connected via one of its LAN ports since the WAN port is firewalled by default. On the gateway router you just assign an IP to a br0 virtual interface and add NAT since the reset device won't have any route to the other network.

In save startup
 ifconfig br0:1 192.168.1.2 netmask 255.255.255.0
In save firewall
 iptables -t nat -I POSTROUTING -o br0 -d 192.168.1.0/24 -j MASQUERADE

===Samba2===
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=86926 - Samba2 dd-wrt

===Commands===
nvram size and amount free
 nvram show|grep free

ext filesystem support
 ls -R /lib/modules/ | grep ext

'''In the My Page thread redhat27 wrote:'''<br />
...and with no nvram commits:

I noticed that the script permissions were properly set by default in the tarball.

So, a super easy way to 'install' the my page script files is just copy the tarball mypage-files-v0.16-20100129-00520.tgz over to your persistent storage (I used /jffs/store) and have this as part of your startup script:

 myPage="/jffs/store/mypage-files-v0.16-20100129-00520.tgz"
 if [ -e "$myPage" ]; then
   tar -C /tmp/www -xzf $myPage
   for pageIndex in 1 2 3 4 5 6 7 8 9 10 11 12
   do
     pages="${pages} /tmp/www/mypage${pageIndex}.sh"
   done
   nvram set mypage_scripts="`echo $pages`"
 fi


Of course you may wish to install less: just remove the relevant page indexes.<br />
'''corerev comand'''
 nvram show|grep corerev
If you have a dual radio, you will see wl0 & wl1. If you have a single radio, wl0 will contain the corerev.

'''wl commands'''<br />
 Put simply, always specify the interface.
 wl -i `nvram get wl0_ifname` [rest of command]

 wl -i `nvram get wl0_ifname` cap = Wireless capabilities. example:
 
 Asus RT-N16
  wl -i eth1 cap = Wireless Capabilities of radio at "eth1"
 Netgear WNDR3300
  wl -i eth2 cap = Wireless Capabilities of radio at "eth2"
  wl -i eth3 cap = Wireless Capabilities of radio at "eth3"

reference: [[dd-wrt-wiki:Wl_command Wl command]

'''Getting the current up and down bandwidth'''

If anyone is interested u can get the amount sent and received by using grep and ifconfig:

 RX=`ifconfig br0 | grep "RX bytes:" | cut -d ':' -f2 | cut -d "(" -f1 | tr -d ' '`
 TX=`ifconfig br0 | grep "RX bytes:" | cut -d ':' -f3 | cut -d "(" -f1 | tr -d ' '`

If you can get the amount sent then u can get the current by just doing it again and subtracting them

http://www.dd-wrt.com/phpBB2/viewtopic.php?t=90467

'''USB HDD spindown'''
 echo 1 > /sys/block/sda/device/scsi_disk:0:0:0:0/allow_restart

===D-Link Recovery ?===
*[https://forum.openwrt.org/viewtopic.php?pid=98659#p98659 Reference]
The procedure is the following:
 use an ethernet cable to connect to a lan port on the switch;
 set the ethernet port ip to 192.168.0.2;
 disconnect the router's power cable;
 press the reset button and keep pressing it;
 connect the router's power cable;
 wait about 20 seconds with the reset button still pressed; the power light should be orange and blinking;
 release the reset button;
 use a browser and go to http://192.168.0.1;
 upload one of dlink's original images.

Please note that even though the emergency webserver will be listening at 192.168.0.1, the router won't respond to pings.