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PIX506 and a Cable modem

I am having trouble with an application using a PIX506 and a cable modem.

Here is a copy of my config, very basic.

Any thoughts.

PIX Version 6.2(2)

nameif ethernet0 outside security0

nameif ethernet1 inside security100

enable password xxxxxxxxxxxxxxxxx encrypted

passwd xxxxxxxxxxxxxxxxxxx encrypted

hostname pixfirewall

fixup protocol ftp 21

fixup protocol http 80

fixup protocol h323 h225 1720

fixup protocol h323 ras 1718-1719

fixup protocol ils 389

fixup protocol rsh 514

fixup protocol rtsp 554

fixup protocol smtp 25

fixup protocol sqlnet 1521

fixup protocol sip 5060

fixup protocol skinny 2000


pager lines 24

logging on

interface ethernet0 10baset

interface ethernet1 10baset

mtu outside 1500

mtu inside 1500

ip address outside dhcp setroute

ip address inside

ip audit info action alarm

ip audit attack action alarm

pdm history enable

arp timeout 14400

nat (inside) 1 0 0

timeout xlate 3:00:00

timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h323 0:05:00 si

p 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

no snmp-server location

no snmp-server contact

snmp-server community public

no snmp-server enable traps

floodguard enable

no sysopt route dnat

telnet inside

telnet timeout 5

ssh timeout 5

terminal width 80


I also cannot get into the 506 using explorer from the inside.



Re: PIX506 and a Cable modem


add the following lines to your config and use HTTPS to browse to the pix (http is not supported, only https)

http server enable

http A.B.C.D inside

A.B.C.D is the ip address of the host from which you are trying to reach the pix with the webbrowser. Make sure that DES or 3DES is enable, otherwise you will not be able to reach the pix.

If you're still having problems after adding these two lines, you could have a look at this page:

For outside access, you also need a global statement in combination with the nat statement.

Add this line for outside access:

global (outside) 1 interface

Kind Regards,


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