I'm in a situation where I have only a single DHCP assigned Internet IP and have a web/ftp server on an internal host that needs to be published to the Internet, however, all other network hosts must be able to access web and ftp protocols on the Internet. Currently I'm configured as follows:
: Saved
: Written by enable_15 at 17:54:13.949 UTC Tue Apr 27 2004
PIX Version 6.3(1)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password xxxxx
passwd xxxxx
hostname pixfirewall
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol ils 389
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
fixup protocol sqlnet 1521
names
access-list 101 permit tcp any any eq ftp
access-list 101 permit tcp any any eq pop3
access-list 101 permit tcp any any eq smtp
access-list 101 permit tcp any any eq 3389
access-list 101 permit tcp any any eq 6180
access-list 101 permit tcp any any eq www
pager lines 24
icmp permit any outside
icmp permit 192.168.0.0 255.255.255.0 inside
icmp permit any inside
mtu outside 1500
mtu inside 1500
ip address outside dhcp setroute
ip address inside 192.168.0.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0 outside 0 0
static (inside,outside) interface 192.168.0.2 netmask 255.255.255.255 0 0
access-group 101 in interface outside
timeout xlate 0:05:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
aaa-server LOCAL protocol local
http server enable
http 192.168.0.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
tftp-server inside 192.168.0.3 /pixconfig
floodguard enable
telnet 192.168.0.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd address 192.168.0.2-192.168.0.33 inside
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
dhcpd enable inside
terminal width 80
Cryptochecksum:xxxxx
With this configuration, the Internal host 192.168.0.2 is successfully hosting the necessary services, however, it is the only host that can access the Internet. Is there any way to publish a web/ftp server to the Internet and still allow other hosts to browse the web with a single DHCP assigned public IP?
