 WRT54G Firmware Documentation |
Q: Does the modified firmware allow you to get a round the linksys single public ip restriction?
A: It does via login or the command shell using "ip addr add (extra IP address) dev eth1" for V1 boxes. Change eth1 to vlan1 on V2's. You will be able to automate this as a startup script via the web interface in the final Satori release.
Q: Does Sveasoft Firmware Support IP6?
A: This will be part of our mesh project. There isn't enough room for Ipv6 with all of the tool upgrades and we don't have time to tst IPv6 on the Satori build. The Samadhi source is available and if you would like to upgrade it to IPv6 and test it we will certainly look at merit it in when we move to squashfs V2.0.
Q: How can I route traffic from the WAN Port to my LAN/WLAN ports?
A: if you just want a quick and dirty forward of everything use the following
iptables -A FORWARD -i bro -o eth1 -j ACCEPT iptables -A FORWARD -o bro -i eth1 -j ACCEPT
If you want a little protection you can use the following instead -
iptables -A FORWARD -i bro -o eth1 -j ACCEPT iptables -A FORWARD -o bro -i eth1 -m state --state ESTABLISHED,RELATED -j ACCEPT
(This means only connections that originated from the LAN are allowed back in from the WAN port).
If you want to masquerade add the following line -
iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE
If you have a V2 box substitute "vlan1" for "eth1" above.
Q: How can I remotely reboot my WRT54G?
A: Here is one possible solution from the 
Sveasoft forums
"Posted: Tue Mar 16, 2004 1:00 am Post subject:
Ivoshiee wrote:
An option to restart the box will be good to have - it is not always possible to sit by the box just to activate some configuration changes by restarting the box manually.
It seems that I found a way how to remotely reboot the WRT54G:
1. Log in the WRT54G
2. Go to "Administration" section
3. Click on "Diagnostics"
4. Press "Run"
5. Type "reboot" to appearing window and press "Cmd"
Maybe it is not worth of inclusion to any FAQs, but at least it is working solution."
Q: Why do I have problems with multiple computers behind my WRT54G when it is in client mode?
A: When in client mode, the WRT54G performs some MAC address magic and thus works best with only one ethernet device connected to it on the switch ports. Read more in SV-Wireless-Clientmode.
Q: Can I run Kismet on my WRT54G?
A: Yes, this has been done. Here are some relevant links on this topic (search the Sveasoft forums for more):
http://toys.lerdorf.com/archives/20_Kismet_on_the_Linksys_WRT54G.html
http://gattaca.ru/nikki/wrt54g/ (MIPS binary for kismet_drone and kismet_monitor)
http://www.sveasoft.com/modules/phpBB2/viewtopic.php?p=6222#6222
Q: Can I use the Internet port as normal Ethernet uplink port?
A: It's not easy to do this with the Sveasoft firmware (at least up to Satori pre3), but you may be able to figure out how to do it by reading these forum messages:
http://www.sveasoft.com/modules/phpBB2/viewtopic.php?t=1013
http://sveasoft.com/modules/phpBB2/viewtopic.php?t=191
Q: What is the difference between the two firewall enabling/disabling configuration locations in Satori?
accessed via Security tab (URL is http://10.0.0.254/Management.asp)
"Firewall: Enable Disable"
vs.
accessed via Administration tab (URL is http://10.0.0.254/Firewall.asp)
"Firewall Protection: Enable Disable"
A: "The Enable/Disable flags under Administration->Management are designed to be the "master switches" in the system. If you disable anything here it is disabled everywhere." Also read SV-Administration-Management.
Q: Why can't I access my router via http?
A: It seems that the router's web server sometimes likes https instead of http, so if after making a change it doesn't respond to the http://10.0.0.254/ URL try https://10.0.0.254/
Also make sure your PC is on the same subnet as your router, that their IP addresses are not conflicting, and that you are trying to connect to the right IP address. If all else fails you may need to long reset your router.
Q: How can I (long) reset my router?
A: Pushing the reset button quickly is like doing a reboot, not a full settings reset. You can do a 'long reset' of your WRT54G by holding down the reset button for 10-15 seconds until the device reboots. This will reset everything to defaults. Reference: http://www.sveasoft.com/modules/phpBB2/viewtopic.php?t=956
Another way to reset (use the gui menu option):
http://www.sveasoft.com/modules/phpBB2/viewtopic.php?t=1054
Q: Is there any way I can move files on or off the router, either by using any of the builtin tools or installing something on the router? As far as I am aware.. the TFTPD onboard the router only allows for code.bin to be placed into the /tmp directory for execution (firmware rev's). Is there any way to access the filesystem directly?
A: Login in to the router, cd to /tmp (the RAMDISK), and use wget with either ftp:// or http://.
Reference: aimana, sveasoft at http://www.sveasoft.com/modules/phpBB2/viewtopic.php?t=1072
Q: (not yet verified) How can I view the 'rc_startup' settings and parameters?
A: From the shell prompt:
#nvram get rc_startup
You may be able to use 'nvram set rc_startup=' to set values
Reference: http://www.sveasoft.com/modules/phpBB2/viewtopic.php?t=960
Q: How can I route instead of bridge between the LAN and WLAN interfaces?
Q: How can I use routing instead of bridging between the LAN and WLAN?
A: Relevant links:
http://www.sveasoft.com/modules/phpBB2/viewtopic.php?t=56
http://www.sveasoft.com/modules/phpBB2/viewtopic.php?p=7549#7549
http://www.sveasoft.com/modules/phpBB2/viewtopic.php?t=837&highlight=split+lan+wlan
http://www.sveasoft.com/modules/phpBB2/viewtopic.php?t=416&highlight=split+lan+wlan
See the FAQ forum for more FAQ questions and answers.