Can't go on the internet. HELP!!!!!

[EduardoA]

I thought I had configured my PIX and 1751 the right way, but when everything is connected, I can't go on the internet.

The following is my config, can someone tell me what am I doing wrong?

Any help would be greatly appreciated

Shared T1--(switch)--(1751)---(PIX)----(switch)---(LAN)




***PIX506E***

PIX Version 6.1(4)
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password Kgj8H0CArY1EQe85 encrypted
passwd Kgj8H0CArY1EQe85 encrypted
hostname PIX506E
domain-name XXXXXXXX
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 1720
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
interface ethernet0 10full
interface ethernet1 10full
mtu outside 1500
mtu inside 1500
ip audit info action alarm
ip audit attack action alarm
pdm location 192.168.0.10 255.255.255.255 inside
pdm location 198.168.0.0 255.255.255.255 inside
pdm location 198.168.0.0 255.255.255.0 inside
pdm history enable
arp timeout 14400
global (outside) 1 172.16.1.20-172.16.1.60 netmask 255.255.255.0
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
route outside 0.0.0.0 0.0.0.0 172.16.1.1 1
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
http server enable
http 192.168.0.10 255.255.255.255 inside
snmp-server location
snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
http server enable
http 192.168.0.10 255.255.255.255 inside
snmp-server location Saddle Brook
snmp-server contact Eduardo Arancibia
snmp-server community public
no snmp-server enable traps
floodguard enable
no sysopt route dnat
telnet 198.168.0.0 255.255.255.0 inside
telnet 192.168.0.10 255.255.255.255 inside
telnet timeout 5
ssh timeout 5
dhcpd address 192.168.0.11-192.168.0.254 inside
dhcpd dns XXXXXXXXXXX XXXXXXXXXXX
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd domain inside
dhcpd auto_config outside
dhcpd enable inside
terminal width 80
Cryptochecksum:30149ebee56c395300c273353c43bcaa


***1751ROUTER***

Using 842 out of 29688 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 1751Router
!
enable secret 5 $1$hGQQ$sTb4tHkCWZV3.L/LQQhRP0
enable password XXXX
!
memory-size iomem 25
ip subnet-zero
no ip routing
ip name-server 216.XXX.XXX.XXX
ip name-server 216.XXX.XXX.XXX
!
!
!
!
interface FastEthernet0/0
description Connection to outside PIX506E Firewall
ip address 172.16.1.1 255.255.255.0
no ip route-cache
speed auto
full-duplex
no cdp enable
!
interface Ethernet1/0
description Connected to shared T1 line
ip address 216.XXX.XXX.XXX 255.255.255.224
no ip route-cache
full-duplex
no cdp enable
!
ip default-gateway 216.XXX.XXX.XXX
ip classless
ip route 0.0.0.0 0.0.0.0 216.XXX.XXX.XXX
no ip http server
!
!
line con 0
exec-timeout 0 0
line aux 0
line vty 0 4
!
interface Ethernet1/0
description Connected to shared T1 line
ip address 216.XXX.XXX.XXX 255.255.255.224
no ip route-cache
full-duplex
no cdp enable
!
ip default-gateway 216.XXX.XXX.XXX
ip classless
ip route 0.0.0.0 0.0.0.0 216.XXX.XXX.XXX
no ip http server
!
!
line con 0
exec-timeout 0 0
line aux 0
line vty 0 4
password XXXXXXXXXXX
login
!
end

Thank you

 

[yizhar]

HI.

You should be using registered routed ip addresses on the network between the pix outside interface and the router.
(Unless you do NAT on the router but this is not recommended).

Get an additional range of at least 8 registered ip addresses from your ISP , or ask your ISP how to use the existing range 216.XXX.XXX.XXX for the network between router and pix (reconfiguration of the router with shared ip address on 2 interfaces can do that).

Bye
Yizhar Hurwitz

http://come.to/yizhar

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

 

[ChrisAC]

Even if your PIX config is correct, any traffic from the PIX reaches the router on private addresses. These addresses are not internet routable. As Yizhar has already said, you should have a routeable address on the outside of the firewall. The firewall then NAT's from the inside network to the outside.

If you have no other devices that require access from the outside then a /30 range should suffice. The router should have a live address on the inside interface (the outside can be unnumbered if your ISP supports this). The next address goes on the outside of the PIX. The inside of the PIX then has a LAN address.

Chris.
**********************
Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
**********************

 

[EduardoA]

Yizhar, IProute,

Thanks for your reply to my question.

I just got more IP's for my network.

First, let me tell you that the floor where my company is at, has a T1 line coming in to the main Closet which is some other company's responsability, from there they have a switch which allows the entire floor internet access.

They have giving me a few more IP addresses, they are as follow:

216.39.xxx.xxx 255.255.255.0
216.73.xxx.x10 255.255.255.224
216.73.xxx.x11 255.255.255.224
216.73.xxx.x12 255.255.255.224
216.73.xxx.x51 255.255.255.224

With these IP's, can now be possible for me to have one for the outside router, another to the inside of the router and one for the outside of the PIX? Which IP's should I use on my config? (I mean what ip should I give to the router and pix?)

After this guys, I promise not to make any other newbie question.

Thanks a lot for all your help.

Eduardo

 

[ChrisAC]

That is a lot of IP addresses!! What are you planing to do with all those! Our customers vary rarely get more than a /29!

Chris.
**********************
Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
**********************

 

[yizhar]

HI.

***

It is difficult to tell you exactly what to do, because we don't have all the details.
Why not ask the ISP to plan and implement this with you?

***

If the router is using only 2 Ethernet/FE interfaces, then I don't see any reason for using it. Simply connect the pix outside interface to the shared T1 Switch.
This can also solve the addressing issue.

Bye
Yizhar Hurwitz

http://come.to/yizhar

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

 

[EduardoA]

Yizhar,

Thanks for all you help, I appreciate it.

I took the router out of my design for the moment (untill I talk to my ISP) and have the firewall working, everything seems to be running just fine, internet access, etc.

Thanks again,

Eduardo