windtear 追求完美

http://windtear.net/archives/2006/06/07/001000.html

fping - ICMP ping 的替代者

http://www.fping.com/
http://www.fping.com/download/
http://www.fping.com/download/fping.tar.gz
2006-03-07 23:59:37  fping.tar.gz  60968 bytes

The latest version is 2.4b2_to-ipv6 (16-Jan-2002)

fping (Maintained by Thomas Dzubin)

fping 的优点：
1. 可以一次ping多个主机
2. 可以从主机列表文件ping
3. 结果清晰 便于脚本处理
4. 速度快

有用的参数：
-g ping 网段
-s 显示统计
-r 1 设置重试次数


Usage: fping [options] [targets...]
-a         show targets that are alive
-A         show targets by address
-b n       amount of ping data to send, in bytes (default 56)
-B f       set exponential backoff factor to f
-c n       count of pings to send to each target (default 1)
-C n       same as -c, report results in verbose format
-e         show elapsed time on return packets
-f file    read list of targets from a file ( - means stdin) (only if no -g specified)
-g         generate target list (only if no -f specified)
             (specify the start and end IP in the target list, or supply a IP netmask)
             (ex. fping -g 192.168.1.0 192.168.1.255 or fping -g 192.168.1.0/24)
-i n       interval between sending ping packets (in millisec) (default 25)
-l         loop sending pings forever
-m         ping multiple interfaces on target host
-n         show targets by name (-d is equivalent)
-p n       interval between ping packets to one target (in millisec)
             (in looping and counting modes, default 1000)
-q         quiet (don't show per-target/per-ping results)
-Q n       same as -q, but show summary every n seconds
-r n       number of retries (default 3)
-s         print final stats
-t n       individual target initial timeout (in millisec) (default 500)
-u         show targets that are unreachable
-v         show version
targets    list of targets to check (if no -f specified)