Ⅰ dd wrt刷tomato前没有清nvram,导致登陆密码错误.本来的密码是root，现在死活进不去路由管理界面
Shibby 本人给出了答案（R7000）：
run router and wait for 2-3 minutes--开机并等待2-3分钟
push and hold wifi on/off button for 25 secs.--按住Wifi键25秒
use telnet on port 233 and log in to router without password--用telnet连接223端口，无需密码
run command: nvram get http_username (use as username)--运行命令：nvram get http_username (运行结果作为用户名)
run command: nvram get http_passwd (use as password)--运行命令：nvram get http_passwd (运行结果作为密码)
when you log in to tomato remember to erase nvram--正常从网页登录即可清除nvram
then flash with the full tomato version--接着可以刷完整版tomato版本了。
原文在这里：http://www.myopenrouter.com/forum/thread/56510/R7000-bricked-Flashed-DD-WRT-to-Tomato-cannot-login-user-pw-denied/#18959