文章目录
第一:确认系统加载了802.1Q模块,并让主网卡零配置
#查看系统是否加载802.1Q模块
[root@localhost ~]# lsmod |grep 8021q
8021q 20475 0
garp 7152 1 8021q
#主网卡配置(无特殊,只要开机自启)
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-enp3s0
TYPE=Ethernet
UUID=e3811502-5ce4-40c4-87ca-52e8c6b566d4
DEVICE=enp3s0
PROXY_METHOD=none
BROWSER_ONLY=no
IPV6INIT=no
NAME="System enp3s0"
ONBOOT=yes
第二:创建带vlan标签的网卡文件
#创建带vlan的网卡设备(注意名字,这是命令规范,这里vlan100 对应网卡名字为ifcfg-enp3s0.100 )
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-enp3s0.100
BOOTPROTO=none
DEVICE=enp3s0.100
ONBOOT=yes
VLAN=yes
IPADDR=111.222.111.111
PREFIX=24
GATEWAY=11.222.111.1
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-enp3s0.200
BOOTPROTO=none
DEVICE=enp3s0.200
ONBOOT=yes
VLAN=yes
IPADDR=222.111.111.111
PREFIX=24
GATEWAY=222.111.111.1
第三:配置策略路由(较为重要哦)
ip route flush table 100
ip rou add default via 111.222.111.1 dev enp3s0.100 src 111.222.111.111 table 100 prio 50
ip rule add from 111.222.111.111 table 100
ip route flush table 200
ip rou add default via 222.111.111.1 dev enp3s0.200 src 222.111.111.111 table 200 prio 50
ip rule add from 222.111.111.111 table 200
第四:重启网络服务,并验证vlan标签是否可使用
#重启网络服务
systemctl stop NetworkManager
systemctl restart network
#验证vlan标签是否创建成功
[root@localhost ~]# cat /proc/net/vlan/enp3s0.100
enp3s0.100 VID: 100 REORDER_HDR: 1 dev->priv_flags: 1
total frames received 525
total bytes received 35155
Broadcast/Multicast Rcvd 0
total frames transmitted 322
total bytes transmitted 54196
Device: enp3s0
INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0
EGRESS priority mappings
#验证IP是否生效
[root@localhost ~]# ip a
2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether 00:24:ec:f0:62:fe brd ff:ff:ff:ff:ff:ff
24: enp3s0.100@enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000
link/ether 00:24:ec:f0:62:fe brd ff:ff:ff:ff:ff:ff
inet 111.222.111.111/24 brd 110.185.122.159 scope global enp3s0.100
valid_lft forever preferred_lft forever
inet6 fe80::224:ecff:fef0:62fe/64 scope link
valid_lft forever preferred_lft forever
25: enp3s0.200@enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000
link/ether 00:24:ec:f0:62:fe brd ff:ff:ff:ff:ff:ff
inet 222.111.111.111/24 brd 101.207.228.95 scope global enp3s0.200
valid_lft forever preferred_lft forever
inet6 fe80::224:ecff:fef0:62fe/64 scope link
valid_lft forever preferred_lft forever
#验证网络是否畅通(带源MTR)
[root@localhost ~]# mtr -a 111.222.111.111 jk.fnk.com -r
Start: Tue Sep 25 22:56:01 2018
HOST: localhost.localdomain Loss% Snt Last Avg Best Wrst StDev
1.|-- gateway 0.0% 10 1.9 1.9 1.8 2.0 0.0
2.|-- 172.29.251.1 0.0% 10 1.0 5.4 1.0 20.7 8.0
3.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
4.|-- 101.207.114.237 60.0% 10 2.4 2.6 2.4 2.8 0.0
5.|-- 119.6.195.49 10.0% 10 2.5 6.7 2.4 40.1 12.5
6.|-- 119.6.197.33 0.0% 10 2.3 2.2 2.1 2.7 0.0
7.|-- 219.158.99.221 0.0% 10 42.0 42.0 42.0 42.1 0.0
8.|-- 120.86.0.82 0.0% 10 47.0 48.2 44.9 51.9 2.2
9.|-- 120.80.99.2 0.0% 10 46.1 47.5 46.1 49.5 1.2
10.|-- 112.95.237.194 0.0% 10 46.8 47.0 46.8 48.0 0.0
11.|-- 42.120.242.234 0.0% 10 50.2 49.8 49.4 50.3 0.0
12.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
13.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
14.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
15.|-- 47.106.128.25 0.0% 10 48.9 48.9 48.9 49.0 0.0
[root@localhost ~]# mtr -a 222.111.111.111 jk.fnk.com -r
Start: Tue Sep 25 22:57:15 2018
HOST: localhost.localdomain Loss% Snt Last Avg Best Wrst StDev
1.|-- gateway 0.0% 10 3.6 5.1 3.6 16.0 3.8
2.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
3.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
4.|-- 101.207.114.237 30.0% 10 2.2 2.1 2.1 2.2 0.0
5.|-- 119.6.195.49 70.0% 10 2.2 2.1 2.1 2.2 0.0
6.|-- 119.6.195.29 0.0% 10 2.8 2.6 2.5 2.8 0.0
7.|-- 219.158.105.9 0.0% 10 39.8 39.8 39.7 40.0 0.0
8.|-- 221.4.0.194 0.0% 10 45.3 48.4 45.3 52.2 2.4
9.|-- 120.80.98.198 0.0% 10 44.9 45.1 43.6 47.1 1.1
10.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
11.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
12.|-- 119.38.215.77 0.0% 10 42.3 42.3 42.2 42.7 0.0
13.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
14.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
15.|-- 47.106.128.125 0.0% 9 44.3 44.3 44.3 44.4 0.0
Ubuntu18.04之前的版本适用(列如16.04LTS)
#第一确认:是否有802.1q模块,并安装vlan软件包(不安装该包会导致带vlan的网卡无法启动)
lsmod |grep -i 8021q #若是没有,需要执行下面的modprobe 8021q
modprobe 8021q
apt install vlan -y
#######其他方法,该步骤是插叙,可忽略####
##添加vlan
vconfig add eth0 100
ifconfig eth0.100 192.168.100.2 netmask 255.255.255.0
#删除vlan
vconfig rem eth0.100
###################################
#第二:编辑网卡配置文件
auto enp3s0f1.2503
iface enp3s0f1.2503 inet static
address 58.82.243.153
netmask 255.255.255.128
gateway 58.82.243.129
dns-nameservers 114.114.114.114
auto enp3s0f1.2908
iface enp3s0f1.2908 inet static
address 58.82.210.130
netmask 255.255.255.128
gateway 58.82.210.129
#第三:配置策略路由,
ip route flush table 100
ip rou add default via 58.82.243.129 dev enp3s0f1.2503 src 58.82.243.153 table 100 prio 50
ip rule add from 58.82.243.153 table 100
ip route flush table 200
ip rou add default via 58.82.210.129 dev enp3s0f1.2908 src 58.82.210.130 table 200 prio 50
ip rule add from 58.82.210.130 table 200
#第四:重启系统或者重启网络服务
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