PIX 501 NAT and PAT with a single IP address

Using the following configuration, on my first PIX 501, I am unable to provide a server of mail to the outside world and allows inside customers to browse the Internet. :

6.3 (5) PIX version

interface ethernet0 car

interface ethernet1 100full

ethernet0 nameif outside security0

nameif ethernet1 inside the security100

enable password xxxx

passwd xxx

hostname fw-sam-01

SAM domain name

fixup protocol dns-length maximum 512

fixup protocol ftp 21

fixup protocol h323 h225 1720

fixup protocol h323 ras 1718-1719

fixup protocol http 80

fixup protocol rsh 514

fixup protocol rtsp 554

fixup protocol sip 5060

fixup protocol sip udp 5060

fixup protocol 2000 skinny

No fixup not protocol smtp 25

fixup protocol sqlnet 1521

fixup protocol tftp 69

names of

outside access list permit tcp any host 62.x.x.109 eq smtp

access the inside to allow tcp a whole list

pager lines 24

Outside 1500 MTU

Within 1500 MTU

IP address outside the 62.177.x.x.x.255.248

IP address inside 192.168.45.1 255.255.255.0

alarm action IP verification of information

alarm action attack IP audit

location of PDM 192.168.45.2 255.255.255.255 inside

PDM logging 100 information

history of PDM activate

ARP timeout 14400

Global 1 interface (outside)

NAT (inside) 1 0.0.0.0 0.0.0.0 0 0

public static 62.177.x.x.x.45.2 (Interior, exterior) mask subnet 255.255.255.255 0 0

outside access-group in external interface

group-access to the Interior in the interface inside

Route outside 0.0.0.0 0.x.x.x.177.208.105 1

Timeout xlate 0:05:00

Timeout conn 01:00 half-closed 0:10:00 udp 0: CPP 02:00 0:10:00 01:00 h225

H323 timeout 0:05:00 mgcp 0: sip from 05:00 0:30:00 sip_media 0:02:00

Sip timeout - disconnect 0:02:00 prompt Protocol sip-0: 03:00

Timeout, uauth 0:05:00 absolute

GANYMEDE + Protocol Ganymede + AAA-server

AAA-server GANYMEDE + 3 max-failed-attempts

AAA-server GANYMEDE + deadtime 10

RADIUS Protocol RADIUS AAA server

AAA-server RADIUS 3 max-failed-attempts

AAA-RADIUS deadtime 10 Server

AAA-server local LOCAL Protocol

Enable http server

http 192.168.45.0 255.255.255.0 inside

No snmp server location

No snmp Server contact

SNMP-Server Community public

No trap to activate snmp Server

enable floodguard

Telnet 192.168.45.0 255.255.255.0 inside

Telnet timeout 5

SSH timeout 5

Console timeout 0

dhcpd lease 3600

dhcpd ping_timeout 750

: end

It is I'am using access list and groups wrong or am I wrong in PAT/NAT configuration.

Please advise...

Hello

I went through the ongoing discussion. The pix configuration should be fine for now according to suggestions. The problems seems to be on the server. If it is a new installation of windows, then there is an option not to accept requests that are not local network.

If you want to check if pix allows connections and then when you telnet to port 25 of the outside, just run the xlates control.

SH xlate and it should show you a translation for the inside host. More than a quick test if pix allows traffic is to check 'sho-outdoor access list' and see if the counters are increasing.

Hopefully this should help you.

Arun S.

Tags: Cisco Security

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