By default, DD-WRT is configured as an open / unsecured AP with the wireless name 'dd-wrt'. If you want to use the router as a repeater bridge, you will need to change a few settings. This is a relatively straightforward process, which will be shown in this tutorial.
Talk:Repeater Bridge - DD-WRT Wiki I enjoy a repeater now due to this write-up on the Repeater Bridge. I followed it to the tee and it worked perfectly. Although not for the light of heart, The DD-WRT micro code saved me a few dollars updating an old WRT54Gv6 as a repeater for my Wireless G network. Setting up a repeater bridge with DD-WRT and D-Link DIR Jul 06, 2012 DD-WRT Repeater Bridge | Confessions and Sarcasm
วิธีทํา Bridge Repeater เพื่อใช้ขยายสัญญาณ WiFi ในบ้าน ขยายสัญญาณในออฟฟิศ ให้ครอบคลุมมากขึ้น จากเฟิร์มแวร์ DD-WRT พร้อมวิธีติดตั้ง DD-WRT ละเอียดยิบ
Jan 31, 2008 DIR-810L Repeater Bridge (HOW TO) Jun 29, 2015 Using DD WRT on a Linksys WRT54G wifi router as a repeater
#2253 (Repeater mode broken in newer builds of K26 only
Wlan Repeater - DD-WRT Wiki