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04.17.2008 at 06:43AM PDT, ID: 23330783
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8.7

Static NAT and ACL configuration problem

Asked by vturba in Network Routers, Cisco PIX Firewall

Tags: , ,

Hi,
I want to configure static NAT and ACL on the cisco ASA 5505. I work with different public IP's (range *.*.*.160 - *.*.*.166 / 255.255.255.248

I have given the following commands

static (inside,outside) *.*.*..163 192.168.0.4 netmask 255.255.255.255
static (inside,outside) *.*.*..164 192.168.0.4 netmask 255.255.255.255
static (inside,outside) *.*.*..164 192.168.0.1 netmask 255.255.255.255
static (inside,outside) *.*.*..164 192.168.0.12 netmask 255.255.255.255
static (inside,outside) *.*.*..166 192.168.0.2 netmask 255.255.255.255
access-list access_outside_in extended permit tcp any host *.*.*.163 eq smtp
access-list access_outside_in extended permit tcp any host *.*.*.164 eq www
access-list access_outside_in extended permit tcp any host *.*.*.164 eq https
access-list access_outside_in extended permit tcp any host *.*.*.164 eq ftp
access-list access_outside_in extended permit tcp any host *.*.*.164 eq www
access-list access_outside_in extended permit tcp any host *.*.*.164 eq 3389
access-list access_outside_in extended permit tcp any host *.*.*.166 eq www
access-list access_outside_in extended permit tcp any host *.*.*.166 eq 3389
wr m
 

Now the following problems occur  (Two static NAT's are seen as duplicates. What did I do wrong???);

Result of the command: "static (inside,outside) *.*.*.164 192.168.0.4 netmask 255.255.255.255"

ERROR: duplicate of existing static
  inside:192.168.0.4 to outside:*.*.*.163 netmask 255.255.255.255
Usage: [no] static [(real_ifc, mapped_ifc)]
            {<mapped_ip>|interface}
            {<real_ip> [netmask <mask>]} | {access-list <acl_name>}
            [dns]
            [[tcp] <max_conns> [<emb_lim> [<norandomseq> [nailed]]]]
            [udp <max_conns>]
      [no] static [(real_ifc, mapped_ifc)] {tcp|udp}
            {<mapped_ip>|interface} <mapped_port>
            {<real_ip> <real_port> [netmask <mask>]} |
            {access-list <acl_name>}
            [dns]
            [[tcp] <max_conns> [<emb_lim> [<norandomseq> [nailed]]]]
            [udp <max_conns>]
      show running-config [all] static [<mapped_ip>]
      clear configure static


Result of the command: "static (inside,outside) *.*.*.164 192.168.0.1 netmask 255.255.255.255"

The command has been sent to the device


Result of the command: "static (inside,outside) *.*.*.164 192.168.0.12 netmask 255.255.255.255"

ERROR: mapped-address conflict with existing static
  inside:192.168.0.1 to outside:*.*.*..164 netmask 255.255.255.255
Usage: [no] static [(real_ifc, mapped_ifc)]
            {<mapped_ip>|interface}
            {<real_ip> [netmask <mask>]} | {access-list <acl_name>}
            [dns]
            [[tcp] <max_conns> [<emb_lim> [<norandomseq> [nailed]]]]
            [udp <max_conns>]
      [no] static [(real_ifc, mapped_ifc)] {tcp|udp}
            {<mapped_ip>|interface} <mapped_port>
            {<real_ip> <real_port> [netmask <mask>]} |
            {access-list <acl_name>}
            [dns]
            [[tcp] <max_conns> [<emb_lim> [<norandomseq> [nailed]]]]
            [udp <max_conns>]
      show running-config [all] static [<mapped_ip>]
      clear configure static



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About this solution

Zones: Network Routers, Cisco PIX Firewall
Tags: Cisco, ASA 5505, 5505
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Solution Provided By: danworman
Participating Experts: 3
Solution Grade: A
 
 
 
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