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靜態(tài)NAT與標(biāo)準(zhǔn)ACL的混合使用 時(shí)間：2015/6/28來(lái)源：IT貓撲網(wǎng)作者：網(wǎng)管聯(lián)盟我要評(píng)論(0)

靜態(tài)nat與標(biāo)準(zhǔn)acl 的混合使用

<1>、將pc0和pc1得ip轉(zhuǎn)換為環(huán)回地址。
<2>、阻止1.1.1.2 的通信

    Router 1配置：
    Router>en
    Router#conf t
    Enter configuration commands, one per line. End with CNTL/Z.
    Router(config)#int f 0/0
    Router(config-if)#ip add 1.1.1.1 255.0.0.0
    Router(config-if)#no shut

    %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
    %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
    Router(config-if)#int f0/1
    Router(config-if)#ip add 2.2.2.1 255.0.0.0
    Router(config-if)#no shutdown

    %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up
    Router(config-if)#exit
    Router(config)#
    %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
    Router(config)#int loopback 0

    %LINK-5-CHANGED: Interface Loopback0, changed state to up
    %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up
    Router(config-if)#ip add 4.4.4.1 255.0.0.0
    Router(config-if)#no shut
    Router(config-if)#exit
    Router(config)#router rip
    Router(config-router)#network 1.0.0.0
    Router(config-router)#network 2.0.0.0
    Router(config-router)#network 4.0.0.0
    Router(config-router)#end
    %SYS-5-CONFIG_I: Configured from console by console
    Router#show ip rou
    Router#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

    C    1.0.0.0/8 is directly connected, FastEthernet0/0
    C    2.0.0.0/8 is directly connected, FastEthernet0/1
    R    3.0.0.0/8 [120/1] via 2.2.2.2, 00:00:11, FastEthernet0/1
    C    4.0.0.0/8 is directly connected, Loopback0
    Router#configure terminal
    Enter configuration commands, one per line. End with CNTL/Z.
    Router(config)#ip nat inside source s
    Router(config)#ip nat inside source static 1.1.1.2 4.4.4.2
    Router(config)#ip nat inside source static 1.1.1.3 4.4.4.3
    Router(config)#interface fastEthernet 0/0
    Router(config-if)#ip nat in
    Router(config-if)#ip nat inside
    Router(config-if)#no shut
    Router(config-if)#no shutdown
    Router(config-if)#int f0/1
    Router(config-if)#ip nat outside
    Router(config-if)#end
    %SYS-5-CONFIG_I: Configured from console by console
    Router#show ip nat ?
      statistics    Translation statistics
      translations Translation entries
    Router#show ip nat tr
    Router#show ip nat translations
    Pro Inside global     Inside local Outside local      Outside global
    --- 4.4.4.2     1.1.1.2      ---    ---
    --- 4.4.4.3     1.1.1.3      ---    ---

Router#ping 3.3.3.2

    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 3.3.3.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 62/62/63 ms

    Router#conf
    Configuring from terminal, memory, or network [terminal]?
    Enter configuration commands, one per line. End with CNTL/Z.
    Router(config)#acc
    Router(config)#access-list ?
      <1-99>     IP standard access list
      <100-199> IP extended access list
    Router(config)#access-list 1 ?
      deny    Specify packets to reject
      permit Specify packets to forward
      remark Access list entry comment
    Router(config)#access-list 1 deny ho
    Router(config)#access-list 1 deny host 1.1.1.2
    Router(config)#access-list 1 per
    Router(config)#access-list 1 permit any
    Router(config)#exit
    %SYS-5-CONFIG_I: Configured from console by console
    Router#show acc
    Router#show access-lists
    Standard IP access list 1
deny host 1.1.1.2
permit any
    Router#configure terminal
    Enter configuration commands, one per line. End with CNTL/Z.
    Router(config)#interface fastEthernet 0/0
    Router(config-if)#ip access-group 1 in
    Router(config-if)#no shut
    Router(config-if)#
    Router(config-if)#

#p#副標(biāo)題#e#

Rourer 1 的配置：
    Router>en
    Router#conf t
    Enter configuration commands, one per line. End with CNTL/Z.
    Router(config)#int f0/0
    Router(config-if)#ip add 3.3.3.1 255.0.0.0
    Router(config-if)#no shutdown

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

關(guān)鍵詞標(biāo)簽：靜態(tài)NAT,標(biāo)準(zhǔn)ACL

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