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. WIKIMERIONET
Merion Mertics , ,

CRM

4

NAT ( ) / PAT ( ), DHCP FHRP ( ).

NAT/PAT , , ( ). , , IP-. DHCP , , FHRP.


1

   3 .

3 . "", . , - - - - , . , NAT / PAT.

, . , IP- . NAT:

ICMP-

, , NAT -, . , , , , , - (, , ICMP-).

   TCP- 80

-, TCP- 80. , , NAT - + TCP- .

show ip nat translations

show ip nat translations, , -. , NAT- - , , , . IP- IP-. ...

show ip nat statistics

show ip nat statistics - . , . FastEthernet 0/0 inside, FastEthernet 1/0 outside.

NAT(config)#interface fastEthernet 0/0
NAT(config-if)#ip nat inside
NAT(config)#interface fastEthernet 1/0
NAT(config-if)#ip nat outside

, , .

- !

show ip nat translations

NAT. IP- - . IP- - , NAT (FastEthernet 1/0). IP- - - ... !

: , .

2

, ! , -. NAT:

NAT#show ip nat translations

, -. , !

show ip nat statistics

, . . 1. ACL:

  ACL access-list

, ... , - ACL! :

NAT(config)#no access-list 1
NAT(config)#access-list 1 permit 192.168.12.0 0.0.0.255

ACL , 192.168.12.0/24.

- .

show ip nat statistics

Hits, NAT statistics.

show ip nat translations

... !

: , , .

DHCP.