扩展 ACL

PPPerryPan2022-05-23techCiscoNetworking

扩展 ACL

拓扑与IP配置

参考拓扑:

image-20220523214457597

实际拓扑(IP与上述保留一致):

image-20220523214538635

Router0 配置

  • 路由总结
R0(config)#ip route 172.26.8.0 255.255.248.0 s2/0 

R0(config)#ip route 172.26.8.0 255.255.248.0 10.10.10.1
  • 配置IP
R0(config)#int f0/0
R0(config-if)#ip add 172.26.8.1 255.255.252.0
R0(config-if)#no shut

R0(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

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


R0(config)#int f1/0
R0(config-if)#ip add 172.26.12.0 255.255.252.0
Bad mask /22 for address 172.26.12.0
R0(config-if)#no shut

R0(config-if)#
%LINK-5-CHANGED: Interface FastEthernet1/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0, changed state to up


R0(config)#int s2/0
R0(config-if)#ip add 10.10.10.1 255.255.255.252
R0(config-if)#no shut

%LINK-5-CHANGED: Interface Serial2/0, changed state to down

Router1 配置

  • IP 配置
R1(config)#int s2/0
R1(config-if)#ip add 10.10.10.2 255.255.255.252
R1(config-if)#no shut

R1(config-if)#
%LINK-5-CHANGED: Interface Serial2/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up

R1(config-if)#int fa0/0
R1(config-if)#ip add 172.16.0.9 255.255.255.248
R1(config-if)#no shut

R1(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

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

image-20220523223208493

image-20220523223532645

image-20220523231204833

image-20220524102323143

Last Updated 4/13/2026, 2:35:35 PM