Setting Up A Pix 1

[hcclSmokey]

Hi There

I am having problems with getting a host connected to my PIX501 to access the Internet. The PIX501 is connected via the 'outside' ethernet port to a D link 504 router/switch using a straight through cable. The dhcp client is enabled on the outside interface of the pix and has has picked up an ip adress of 192.168.0.2 from the D-Link dhcp server. The dhcp server is running on the internal side of the pix (192.168.1.1/24) and has allocated ip address 192.168.1.2 to my host. The host cannot access any addresses outside of the PIX apart from the D-Link config GUI 192.168.0.1. The DSL connection is definitely up and running !!! The PIX is brand new out of the box and has not yet had any changes to the config as it is supposed to be configured with the common settings.

Any help would be appreciated.

Cheers
Smokey

 

[hcclSmokey]

More info...

I can ping the D-link router (192.168.0.1/24)from the PIX but I can't ping the PIX inside interface (192.168.1.1) from the D-link router. I have allowed ICMP echo & echo reply on the inside and outside intrfaces for any address but still no joy. I have added a static route to the D-link router for the 192.168.1.0/24 (Pix) network to no avail.

Smokey
:-(

 

[yizhar]

HI.

> but I can't ping the PIX inside interface (192.168.1.1)
That's OK. By design.

Please post your current config.

Use syslog messages at level 4 (warning).
This will give you valuable info.
Use level 6 (informational) if you want more details for troubleshooting.

Bye


Yizhar Hurwitz

http://come.to/yizhar

http://teachers.sivan.co.il/yizhar

 

[hcclSmokey]

Running config shown below. As suggested I have used logging to console levels 4 & 6. When trying to ping from the host (192.168.1.2) to the D-link router (192.168.0.1), I could see a deny on the hosts outgoing ICMP packet in the console. Created a rule to allow any ICMP from the host to the outside any. Pinged the D-link router and noted a deny on the incoming packet from the D-link router ip address to the outside address of the PIX (192.168.0.2). Created another rule allowing any ICMP from the outside to the inside. Pinged the DSL router again from the host. This time there was no output in the console but the host timed out. I have removed the access rules mentioned above in the config posted below.

Building configuration...
: Saved
:
PIX Version 6.2(2)
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname pixfirewall
domain-name ciscopix.com
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
names
pager lines 24
logging on
logging console informational
interface ethernet0 10baset
interface ethernet1 10full
mtu outside 1500
mtu inside 1500
ip address outside dhcp setroute
ip address inside 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
pdm location 192.168.1.2 255.255.255.255 inside
pdm location 192.168.0.1 255.255.255.255 outside
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 0 0
static (inside,outside) 192.168.1.0 192.168.1.0 netmask 255.255.255.0 0 0
timeout xlate 0:05:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h323 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 192.168.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
no sysopt route dnat
telnet timeout 5
ssh timeout 5
dhcpd address 192.168.1.2-192.168.1.33 inside
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
dhcpd enable inside
terminal width 80
Cryptochecksum:e89e0e9e1b0d411b4a51309f43a830b1
: end
[OK]

Cheers
Smokey

 

[yizhar]

HI.

> static (inside,outside) 192.168.1.0 192.168.1.0 netmask 255.255.255.0 0 0
You should remove the above line.
It overrides your NAT/GLOBAL configuration, and prevents connectivity.

BTW - instead or in addition to testing with ping, try testing with TCP (telnet/ftp/http/smtp/pop3/etc).
The pix does stateful inspection for TCP (unlike ICMP), so you don't need to change any access rules for outbound connections to work.

Bye


Yizhar Hurwitz

http://come.to/yizhar

http://teachers.sivan.co.il/yizhar