华为单臂路由技术

单臂路由的工作原理：
将路由器的某个接口，划分成若干个子接口
每个子接口都可以做为某个vlan的网关
所有vlan之间通过路由器三层互通

实验环境：

pc1和pc3是vlan10的成员

pc2和pc4是vlan20的成员

pc5是vlan30的成员

现在是要求pc1,pc2,pc3间既要通信，又可以隔离广播，这个时候就需要用到单臂路由

现在要求vlan10,vlan20,vlan30都有自己的网关

现在要把ar1的g0/0/2接口做子接口分别为三个vlan的网关

AR1配置信息如下：

The device is running!

<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]dis cu
[Huawei]dis current-configuration
[V200R003C00]
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load flash:/portalpage.zip
#
drop illegal-mac alarm
#
wlan ac-global carrier id other ac id 0
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 12.0.0.1 255.255.255.252
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface GigabitEthernet0/0/2.10 （虚拟子接口10，这个数值可以任意，有范围）
dot1q termination vid 10   （这个接口是谁的网关，告诉路由器他的成员是vlan10）
ip address 192.168.10.1 255.255.255.0
arp broadcast enable
#
interface GigabitEthernet0/0/2.20
dot1q termination vid 20   （vlan20的）
ip address 192.168.20.1 255.255.255.0     （vlan20的网关）
arp broadcast enable      （要想vlan10，vlan20,vlan30互相通信就需要开启arp广播）
#
interface GigabitEthernet0/0/2.30
dot1q termination vid 30
ip address 192.168.30.1 255.255.255.0
arp broadcast enable
#
interface NULL0
#
interface LoopBack0       （环回口）
ip address 1.1.1.1 255.255.255.255
#
ip route-static 0.0.0.0 0.0.0.0 12.0.0.2   （环回口静态路由）
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
[Huawei]

AR2配置信息如下：

The device is running!

sy
Enter system view, return user view with Ctrl+Z.
[Huawei]dis cu
[Huawei]dis current-configuration
[V200R003C00]
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load flash:/portalpage.zip
#
drop illegal-mac alarm
#
wlan ac-global carrier id other ac id 0
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 12.0.0.2 255.255.255.252
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
ip route-static 0.0.0.0 0.0.0.0 12.0.0.1
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
[Huawei]

lsw1华为3700交换机配置信息如下：

The device is running!

sy
Enter system view, return user view with Ctrl+Z.
[Huawei]
[Huawei]dis cu
[Huawei]dis current-configuration
#
sysname Huawei
#
vlan batch 10 20 30
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
drop-profile default
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
#
interface MEth0/0/1
#
interface Ethernet0/0/1
port hybrid pvid vlan 10
port hybrid untagged vlan 10 30
#
interface Ethernet0/0/2
port hybrid pvid vlan 20
port hybrid untagged vlan 20 30
#
interface Ethernet0/0/3
#
interface Ethernet0/0/4
#
interface Ethernet0/0/5
#
interface Ethernet0/0/6
#
interface Ethernet0/0/7
#
interface Ethernet0/0/8
#
interface Ethernet0/0/9
#
interface Ethernet0/0/10
#
interface Ethernet0/0/11
#
interface Ethernet0/0/12
#
interface Ethernet0/0/13
#
interface Ethernet0/0/14
#
interface Ethernet0/0/15
#
interface Ethernet0/0/16
#
interface Ethernet0/0/17
#
interface Ethernet0/0/18
#
interface Ethernet0/0/19
#
interface Ethernet0/0/20
#
interface Ethernet0/0/21
#
interface Ethernet0/0/22
#
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 10 20 30
#
interface GigabitEthernet0/0/2
port hybrid tagged vlan 10 20 30
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
port-group link-t
#
return
[Huawei]
[Huawei]

lsw2华为3700交换机配置信息如下：

The device is running!

sy
Enter system view, return user view with Ctrl+Z.
[Huawei]
[Huawei]dis cu
[Huawei]dis current-configuration
#
sysname Huawei
#
vlan batch 10 20 30
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
drop-profile default
#
vlan 10
description this is vlan 20
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
#
interface MEth0/0/1
#
interface Ethernet0/0/1
#
interface Ethernet0/0/2
#
interface Ethernet0/0/3
port link-type access
port default vlan 10
#
interface Ethernet0/0/4
port link-type access
port default vlan 20
#
interface Ethernet0/0/5
port hybrid pvid vlan 30
port hybrid untagged vlan 10 20 30
#
interface Ethernet0/0/6
#
interface Ethernet0/0/7
#
interface Ethernet0/0/8
#
interface Ethernet0/0/9
#
interface Ethernet0/0/10
#
interface Ethernet0/0/11
#
interface Ethernet0/0/12
#
interface Ethernet0/0/13
#
interface Ethernet0/0/14
#
interface Ethernet0/0/15
#
interface Ethernet0/0/16
#
interface Ethernet0/0/17
#
interface Ethernet0/0/18
#
interface Ethernet0/0/19
#
interface Ethernet0/0/20
#
interface Ethernet0/0/21
port link-type trunk
port trunk allow-pass vlan 10 20 30
#
interface Ethernet0/0/22
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
port-group defau
#
port-group trunk
#
return
[Huawei]
[Huawei]