Hacking a Linksys WRT54G ?

[blacknight]

Has anyone tried any of the alternative firmwares for the Linksys WRT54G?

[gks]

I'm using DD-WRT v23 SP1 from http://www.dd-wrt.com/dd-wrtv2/index.php
Has been quite stable since installed a few weeks back.

[blacknight]

What kind of features / advantages does that firmware offer?

[gks]

The main reason my friend installed this , he supports many of this type of wireless router, is stability and ease of configuration.

The main fetures, from the wiki are:

Feature List

* 13 languages
* 802.1x (EAP (Extensible Authentication Protocol) encapsulation over LANs)
* Access Restrictions
* Adhoc Mode
* Afterburner
* Client Isolation Mode
* Client Mode (supports multiple connected clients)
* Client Mode WPA
* DHCP Forwarder (udhcp (http://udhcp.busybox.net/))
* DHCP Server (udhcp (http://udhcp.busybox.net/) or Dnsmasq (http://thekelleys.org.uk/dnsmasq/doc.html))
* DNS forwarder (Dnsmasq (http://thekelleys.org.uk/dnsmasq/doc.html))
* DMZ
* Dynamic DNS (DynDNS (http://www.DynDNS.org/), TZO (http://www.TZO.com/), ZoneEdit (http://www.ZoneEdit.com/))
* Hotspot Portal (Sputnik Agent (http://www.sputnik.com) ,Chillispot (http://www.chillispot.org/))
* IPv6 Support
* JFFS2 (http://sourceware.org/jffs2/)
* MMC/SD Card Support
* NTP client in a client-server basis
* Port Triggering
* Port Forwarding (max. 30 entries)
* QoS Bandwidth Management (Optimize for Gaming and Services / Netmask / MAC / Ethernet Port Priority)
* QoS L7 Packet Classifier l7-filter (http://l7-filter.sourceforge.net/))
* PPTP VPN Server & Client
* Ntop Remote Statistic
* Syslog to remote server
* RFlow/MACupd
* Routing: Static entries and Gateway, BGP, OSPF & RIP2 via (BIRD (http://bird.network.cz/))
* Samba FS Automount
* Rx/Tx Antenna (Select or Auto)
* Show Status of Wireless Clients and WDS with System Uptime/Processor Utilization
* Site Survey
* SNMP
* SSH server & client (dropbear (http://matt.ucc.asn.au/dropbear/dropbear.html))
* Startup, Firewall, and Shutdown scripts (startup script (http://wrt-wiki.bsr-clan.de/index.ph...artup_Scripts))
* Static DHCP Assignment
* Style (Changeable GUI; v.23)
* Supports New Devices (WRT54G V3, V3.1, V4, V5 and WRT54GS V2.1, V3, V4)
* Telnet server & client
* Transmit Power Adjustment (0-251mW, default is 28mW, 100mW is safe)
* UPnP
* VLAN
* Wake On Lan client (WOL (http://ahh.sourceforge.net/wol/))
* WDS Connection Watchdog
* WDS Repeater Mode
* Wireless MAC Addresses Cloning
* Wireless MAC filter
* WMM (Wi-Fi MultiMedia QoS)
* WPA over WDS
* WPA/TKIP with AES
* WPA2
* Xbox Kaid (Kai Engine (http://www.teamxlink.co.uk/))

[anoble66]

Basically running this firmware you can turn your Linksys into a small WiFI ISP. Lets say for example you wanted to setup a small neighborhood ISP, this firmware has all of the features you need, and because this firmware supports OSPF, RIP etc you can also have multiple AP's runninig to provide fully redundant links back to your ISP connection......i might be wrong but i think this firmware even keeps track of usage for billing purposes etc.

[blacknight]

Sounds interesting. Does it have a GUI of some kind?

And if I upgrade / hack my linksys can I roll it back?

[anoble66]

hi, i have not used it before but i am pretty sure it does use a GUI front end. Yes you can roll back, all your doing is installing a highly modified firmware.

[fermin04]

Hi, I'm a beginner about wifi.

How can I add a script to shutdown the wrt54gl?

Please, step by step. Thanks

[Phoenix_Fire]

Wow that firmware sound very cool. I am very tempted to give it a try. The firmware found on the Linksys website refuses to be uploaded to the router, it just causes an error for some reason.

I cant seem to be able to log in through telnet at the moment although I assumed that this was possible. I will try to log in remotely tomorrow but have a thought. I will have to enter the public ip address like 82.xx.xx.xx:8080 and assuming it is enabled in configuration, it should work right?

[blacknight]

I finally took the plunge this weekend and got the Sveasoft firmware, which I'd heard good things about.

I'll post about my experiences once I've had a chance to work out what all the new features are and how to make full use of them

Phoenix - are you trying to upgrade your firmware to the latest version??

You'll need one of the modded versions to get the SSH and telnet stuff working