实现跨网段为主机自动分配IP地址等配置
sw1#
sw1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
sw1(config)#vlan 10,20,100
sw1(config-vlan)#ex
sw1(config)#int f1/0
sw1(config-if)#sw mo tr
*Mar 1 00:02:37.515: %DTP-5-TRUNKPORTON: Port Fa1/0 has become dot1q trunk
sw1(config-if)#sw tr en dot
sw1(config-if)#ex
sw1(config)#int vlan10
*Mar 1 00:02:59.655: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan10, changed state to up
sw1(config-if)#ip add 192.168.10.1 255.255.255.0
sw1(config-if)#no shut
sw1(config-if)#ip helper-address 192.168.100.2
sw1(config-if)#ex
sw1(config)#int vlan20
*Mar 1 00:03:38.203: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan20, changed state to up
sw1(config-if)#ip add 192.168.20.1 255.255.255.0
sw1(config-if)#no shut
sw1(config-if)#ip helper-address 192.168.100.2
sw1(config-if)#ex
sw1(config)#int vlan100
*Mar 1 00:04:14.775: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan100, changed state to up
sw1(config-if)#ip add 192.168.100.1 255.255.255.0
sw1(config-if)#no shut
sw1(config-if)#ex
sw1(config)#do show vlan-sw b
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa1/1, Fa1/2, Fa1/3, Fa1/4
Fa1/5, Fa1/6, Fa1/7, Fa1/8
Fa1/9, Fa1/10, Fa1/11, Fa1/12
Fa1/13, Fa1/14, Fa1/15
10 VLAN0010 active
20 VLAN0020 active
100 VLAN0100 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
sw1(config)#
sw2>en
sw2#conf t
sw2(config)#no ip routing
sw2(config)#vlan 10,20,100
sw2(config-vlan)#ex
sw2(config)#int f1/1
sw2(config-if)#sw mo acc
sw2(config-if)#sw acc vlan 10
sw2(config-if)#ex
sw2(config)#int f1/2
sw2(config-if)#sw mo acc
sw2(config-if)#sw acc vlan 20
sw2(config-if)#ex
sw2(config)#int f1/3
sw2(config-if)#sw mo acc
sw2(config-if)#sw acc vlan 100
sw2(config-if)#ex
sw2(config)#int f1/0
sw2(config-if)#sw mo tr
*Mar 1 00:01:56.795: %DTP-5-TRUNKPORTON: Port Fa1/0 has become dot1q trunk
sw2(config-if)#sw tr en dot1q
sw2(config-if)#ex
sw2(config)#do show vlan-sw b
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa1/4, Fa1/5, Fa1/6, Fa1/7
Fa1/8, Fa1/9, Fa1/10, Fa1/11
Fa1/12, Fa1/13, Fa1/14, Fa1/15
10 VLAN0010 active Fa1/1
20 VLAN0020 active Fa1/2
100 VLAN0100 active Fa1/3
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
sw2(config)#
原文地址:http://blog.51cto.com/10316297/2112479