Router on a Stick

目標：
PC1為VLAN 66，PC2為VLAN 1，PC3為VLAN88
使用Router on a stick，讓VLAN裡的PC可以互通，同時也可以連到設在Switch VLAN1的IP


====Switch設定====
SW(config)#ip default-gateway 10.1.1.254
SW(config)#interface VLAN 1
SW(config-if)#ip address 10.1.1.1 255.255.255.0
SW(config-if)#no shutdown
SW(config)#interface range fastEthernet 0/1-10
SW(config-if-range)#switchport access vlan 66

SW(config)#interface range fastEthernet 0/14-24
SW(config-if-range)#switchport access vlan 88

SW(config)#interface fastEthernet 0/12
SW(config-if)#switchport mode trunk
SW(config-if)#^Z
SW#show vlan brief

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Fa0/11, Fa0/13
66   VLAN0066                         active    Fa0/1, Fa0/2, Fa0/3, Fa0/4
                                                Fa0/5, Fa0/6, Fa0/7, Fa0/8
                                                Fa0/9, Fa0/10
88   VLAN0088                         active    Fa0/14, Fa0/15, Fa0/16, Fa0/17
                                                Fa0/18, Fa0/19, Fa0/20, Fa0/21
                                                Fa0/22, Fa0/23, Fa0/24
1002 fddi-default                     active   
1003 token-ring-default               active   
1004 fddinet-default                  active   
1005 trnet-default                    active 

====Router設定====
Router#configure terminal
RO(config)#interface fastEthernet 0/0
RO(config-if)#no shutdown

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
ip add

RO(config-if)#ip address 10.1.1.254 255.255.255.0
RO(config-if)#^Z
RO#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
RO(config)#interface fastEthernet 0/0.66
RO(config-subif)#
%LINK-5-CHANGED: Interface FastEthernet0/0.66, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0.66, changed state to up

RO(config-subif)#encapsulation dot1Q 66
RO(config-subif)#ip address 10.1.66.254 255.255.255.0
RO(config-subif)#no shutdown
RO(config-subif)#exit
RO(config)#interface fastEthernet 0/0.88
RO(config-subif)#
%LINK-5-CHANGED: Interface FastEthernet0/0.88, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0.88, changed state to up
en
RO(config-subif)#encapsulation dot1Q 88
RO(config-subif)#ip address 10.1.88.254 255.255.255.0
RO(config-subif)#no shutdown

RO#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
       i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
       * - candidate default, U - per-user static route, o - ODR
       P - periodic downloaded static route

Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 3 subnets
C       10.1.1.0 is directly connected, FastEthernet0/0
C       10.1.66.0 is directly connected, FastEthernet0/0.66
C       10.1.88.0 is directly connected, FastEthernet0/0.88
RO#ping 10.1.66.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.66.1, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 0/0/0 ms

RO#ping 10.1.88.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.88.1, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 0/1/3 ms