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NAT Query

rocky2024
Level 1
Level 1

Dear All,

 

Please guide me on below query

 

                          Server 10.1.1.1

                                    |

                                    | dmz

R3-----outside----ASA-inside--------PC-B

Internet                        |

                                   |

                                   |

                               server

 

in above scenario, i am configuring object-nat to nat traffic from server 10.1.1.1 with outside interface to go to internet but why we need to permit real server IP 10.1.1.1 in ACL on outside interface ?

 

object network REAL-SERVER

  host 10.1.1.1

    nat (DMZ,OUTSIDE) static 97.1.1.1 service tcp https https

 

access-list OUTSIDE-IN permit tcp any object REAL-SERVER eq 443

access-group OUTSIDE-IN in interface OUTSIDE

 

why we need to permit above statement where we are defining real ip address for server ? 

 

regards,

2 Replies 2

Dennis Mink
VIP Alumni
VIP Alumni

because your NAT will be processed before an ACL will be processed

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Dear Dennis,
I didnt understood fully. can you please elaborate more please.?

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