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Author Can't access webserver from my inside network
cogito

2003-05-01, 6:20 pm

I have a DMZ with a www server that resides in it. Users in my internal network can not Access the website on the sserver. Here is what is configure

outside: 200.200.200.200
DMZ: 10.10.10.1/24
webserver internal :10.10.10.10/24
real webserver ip address :200.200.200.201
webserver internal address 172.18.134.2/24

This is what i have

1. static (dmz,outside) 200.200.200.201 10.10.10.10 netmask 255.255.255.255
2. conduit permit tcp host 200.200.200.201 eq www any


nat (inside) 1 0.0.0.0 0.0.0.0

Do I need a global (dmz) statement
thanks
mosam

2003-05-01, 10:47 pm

As a rule, any lower security interface to access higher security interface, you need static. And for a higher security interface to access lower security interface, you need to nat. If you take this as a golden rule in PIX, you can can do almost any kind of translation...

So, in order for internal users to access DMZ, they will need to be natted to DMZ as well. And you will need to either assign them an address range for that, or just use PAT single IP address (or even DMZ interface for that).
cogito

2003-05-01, 11:36 pm

I'm using the following:

nat (inside) 1 0.0.0.0 0.0.0.0

Do you think I should add additional global and nat commands?


global (dmz) 1 10.10.10.0-10.10.10.20

nat (dmz) 1 10.10.10.0 255.255.255.0
mosam

2003-05-02, 12:39 am

Try this,

! This will nat all inside network
nat (inside) 1 0.0.0.0 0.0.0.0

! to a global outside address
global (outside) 1 interface

! and a global DMZ address
global (dmz) 1 interface

The only thing left is to nat DMZ to outside.. make it in different nat process,

! This will nat all dmz network
nat (dmz) 2 0 0

! to a global outside address
global (outside) 2 interface


"interface" may not work in some PIX image versions, if it doesn't work, try replacing it with an IP address of the same DMZ (in case of DMZ) network, or outisde IP (In case of outside natting).
cogito

2003-05-02, 12:15 pm

Thanks mosam!

This should work to access webservr from internal...yes or no
this is only part of the config

# Nameif
nameif ethernet0 outside security0
nameif ethernet1 inside security100
nameif ethernet2 dmz security50

#ip address

ip address outside 64.x.x.x 255.255.255.128
ip address inside 172.16.34.1 255.255.255.0
ip address DMZ 10.10.10.1 255.255.255.0

#Global

global (outside) 1 64.x.x.31-64.x.x.126 netmask 255.255.255.128

global (dmz) 1 10.10.10.0-10.10.10.20
(or i can make it 64.x.x.30)

#Nat

nat (inside) 1 0.0.0.0 0.0.0.0
nat (DMZ) 2 0.0.0.0 0.0.0.0

# Static
static (DMZ,outside) 64.x.x.x.29 10.10.10.10 netmask 255.255.255.255

#conduit
conduit permit tcp host 64.x.x.29 eq www any

Looking at the previous post it looks like I need to Add


global (outside) 2 64.x.x.x.3 netmask 255.255.255.128
mosam

2003-05-02, 3:23 pm

Yes, this should wor, just replace,

global (dmz) 1 10.10.10.0-10.10.10.20

with

global (dmz) 1 10.10.10.2-10.10.10.20
cogito

2003-05-02, 9:11 pm

ok..
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