ipaddr
1:lo:<LOOPBACK,UP,LOWER_UPmtu65536qdisc noqueue state UNKNOWN
link/loopback00:00:00:00:00:00brd00:00:00:00:00:00
inet127.0.0.1/8scope host lo
valid_lft forever preferred_lft forever
inet6::1/128scope host
valid_lft forever preferred_lft forever
2:enp0s3:<BROADCAST,MULTICAST,UP,LOWER_UPmtu1500qdisc pfifo_fast state UP qlen1000
link/ether08:00:27:80:63:19brd ff:ff:ff:ff:ff:ff
inet192.168.1.150/24brd192.168.1.255scopeglobalenp0s3
valid_lft forever preferred_lft forever
cat/etc/sysconfig/network-scripts/ifcfg-enp0s3
TYPE="Ethernet"
BOOTPROTO="none"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
NAME="enp0s3"
UUID="e9f9caef-cb9e-4a19-aace-767c6ee6f849"
ONBOOT="yes"
HWADDR="08:00:27:80:63:19"
IPADDR0="192.168.1.150"
PREFIX0="24"
GATEWAY0="192.168.1.1"
DNS1="192.168.1.1"
IPV6_PEERDNS="yes"
IPV6_PEERROUTES="yes"
vi/etc/sysconfig/network-scripts/ifcfg-enp0s3
TYPE="Ethernet"
BOOTPROTO="none"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
NAME="enp0s3"
UUID="933cdc9b-b383-4ddd-b219-5a72c69c9cf0"
ONBOOT="yes"
HWADDR="08:00:27:3F:AB:68"
IPADDR0="192.168.1.150"
IPADDR1="192.168.1.151"
IPADDR2="192.168.1.152"
PREFIX0="24"
GATEWAY0="192.168.1.1"
DNS1="192.168.1.1"
IPV6_PEERDNS="yes"
IPV6_PEERROUTES="yes"
systemctlrestart network
ipaddr
:lo:<LOOPBACK,UP,LOWER_UPmtu65536qdisc noqueue state UNKNOWN
link/loopback00:00:00:00:00:00brd00:00:00:00:00:00
inet127.0.0.1/8scope host lo
valid_lft forever preferred_lft forever
inet6::1/128scope host
valid_lft forever preferred_lft forever
2:enp0s3:<BROADCAST,MULTICAST,UP,LOWER_UPmtu1500qdisc pfifo_fast state UP qlen1000
link/ether08:00:27:3f:ab:68brd ff:ff:ff:ff:ff:ff
inet192.168.1.150/24brd192.168.1.255scopeglobalenp0s3
valid_lft forever preferred_lft forever
inet192.168.1.151/24brd192.168.1.255scopeglobalsecondary enp0s3
valid_lft forever preferred_lft forever
inet192.168.1.152/24brd192.168.1.255scopeglobalsecondary enp0s3
valid_lft forever preferred_lft forever
inet6 fe80::a00:27ff:fe3f:ab68/64scopelink
valid_lft forever preferred_lft forever
如你所见,单个网卡已经有3个IP地址了。
让我们ping一下新增的IP地址:
ping-c4192.168.1.151
示例输出:
PING192.168.1.151(192.168.1.151)56(84)bytes of data.
64bytesfrom192.168.1.151:icmp_seq=1ttl=64time=0.048ms
64bytesfrom192.168.1.151:icmp_seq=2ttl=64time=0.075ms
64bytesfrom192.168.1.151:icmp_seq=3ttl=64time=0.077ms
64bytesfrom192.168.1.151:icmp_seq=4ttl=64time=0.077ms
---192.168.1.151pingstatistics---
4packets transmitted,4received,0%packet loss,time2999ms
rtt min/avg/max/mdev=0.048/0.069/0.077/0.013ms
TYPE="Ethernet"
BOOTPROTO="none"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
NAME="enp0s3"
UUID="933cdc9b-b383-4ddd-b219-5a72c69c9cf0"
ONBOOT="yes"
HWADDR="08:00:27:3F:AB:68"
IPADDR0="192.168.1.150"
IPADDR1="192.168.1.151"
IPADDR2="192.168.1.152"
IPADDR3="10.0.0.1"
PREFIX0="24"
PREFIX1=16
GATEWAY0="192.168.1.1"
DNS1="192.168.1.1"
IPV6_PEERDNS="yes"
IPV6_PEERROUTES="yes"
你可以看到我已经添加一个A类地址(10.0.0.1)并且前缀是16。
保存并退出文件。重启网络服务,接着,ping新增的地址:
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