Linux ip命令详解程序员

ｉｐ命令式用来配置网卡ip信息的命令，且是未来的趋势，重启网卡后IP失效

ip常见命令参数

Usage: ip [ OPTIONS ] OBJECT { COMMAND | help } 
       ip [ -force ] -batch filename 
where  OBJECT := { link | addr | addrlabel | route | rule | neigh | ntable | 
                   tunnel | maddr | mroute | mrule | monitor | xfrm } 
       OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] | 
                    -f[amily] { inet | inet6 | ipx | dnet | link } | 
                    -o[neline] | -t[imestamp] | -b[atch] [filename] | 
                    -rc[vbuf] [size]} 

ip addr 常见命令参数

Usage: ip addr {add|change|replace} IFADDR dev STRING [ LIFETIME ] 
                                                      [ CONFFLAG-LIST] 
       ip addr del IFADDR dev STRING 
       ip addr {show|flush} [ dev STRING ] [ scope SCOPE-ID ] 
                            [ to PREFIX ] [ FLAG-LIST ] [ label PATTERN ] 
IFADDR := PREFIX | ADDR peer PREFIX 
          [ broadcast ADDR ] [ anycast ADDR ] 
          [ label STRING ] [ scope SCOPE-ID ] 
SCOPE-ID := [ host | link | global | NUMBER ] 
FLAG-LIST := [ FLAG-LIST ] FLAG 
FLAG  := [ permanent | dynamic | secondary | primary | 
           tentative | deprecated | CONFFLAG-LIST ] 
CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG 
CONFFLAG  := [ home | nodad ] 
LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ] 
LFT := forever | SECONDS

常用的命令展示

为网卡配置和删除IPv4地址  【临时生效，永久生效需要更改配置文件】

eth2网卡配置文件： /etc/sysconfig/network-scripts/ifcfg-eth2

[[email protected] ~]# ip addr add 192.168.25.166/24  dev eth0  

[[email protected] ~]# ifconfig eth0 192.168.25.166 netmask 255.255.255.0 up 【效果同上】

[[email protected] ~]# ifconfig eth0 192.168.25.166/24 up       【效果同上】

[[email protected] ~]# ip addr add 192.168.25.166/24  dev eth0:ws  

[[email protected] ~]# ifconfig eth0:ws 192.168.25.166/24 up   【效果同上】    

[[email protected] ~]# ifconfig eth0:ws 192.168.25.166 netmask 255.255.255.0 up 【效果同上】

[[email protected] ~]# ip addr del 192.168.25.166/24  dev eth0:ws  

[[email protected] ~]# ifconfig eth0:ws  192.168.25.166 netmask 255.255.255.0 down  【效果同上】

[[email protected] ~]# ifconfig eth0:ws  192.168.25.166/24 dwon     【效果同上】