behing pix, using cisco vpn 3.0 to corp network vpn concentrator 3000

[june03]

Im having problems connecting my host pc into my corp network using vpn.

Here's my setup

PC-----PIX-----ROUTER---------INTERNET-------CORP NETWORK's VPN CONCENTRATOR 3000

im using the vpn client v 3.0 at my end to connect to my corp network. Im also behind a pix firewall and a cisco router. Im able to get authenticated, however, im not able to ping anywhere or access any servers at my company's network. If i remove my pix, im able to connect and access network resources. I've looked all over cisco site and did not find any info on how to make this possible. Here's my config. any suggestions.

PIX Version 6.1(1)
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password XXXXXXXXXX encrypted
passwd XXXXXXXXXXXXX encrypted
hostname pixfirewall
domain-name XXXXX
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
no names
access-list 100 permit icmp any any
access-list 100 permit tcp any any
access-list 100 permit ip any any
access-list 100 permit udp any any
pager lines 24
logging facility 23
logging host inside 192.168.1.100
no logging message 111005
interface ethernet0 10baset
interface ethernet1 10full
mtu outside 1500
mtu inside 1500
ip address outside 10.0.1.1 255.255.255.0
ip address inside 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
access-group 100 in interface outside
route outside 0.0.0.0 0.0.0.0 10.0.1.254 1
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
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
no sysopt route dnat
auth-prompt prompt If you are not an authorized user, DISCONNECT IMMEDIATELY. Use of this system is express consent to such monitoring.
telnet 192.168.1.0 255.255.255.0 inside
telnet timeout 15
ssh 0.0.0.0 0.0.0.0 outside
ssh 192.168.1.0 255.255.255.0 inside
ssh timeout 15
dhcpd address 192.168.1.100-192.168.1.131 inside
dhcpd dns XXXXX XXXXX
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
dhcpd enable inside
terminal width 80

 

[yizhar]

HI.

***
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0 0 0

IPSec does not work properly through PAT.

Anyway, it is better to create a site to site vpn from the pix to the corporate network.

Another option is router-corporate VPN.


***
ip address outside 10.0.1.1 255.255.255.0

This could be another problem.
If your router is doing NAT, then you should try disabling NAT at the router and doing it only at the PIX.
This requires cooperation with your ISP.

***
ssh 0.0.0.0 0.0.0.0 outside

This is not recommended for security reasons.


Bye
Yizhar Hurwitz

http://come.to/yizhar

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

 

[june03]

Thanks for your respond. I tried to disble Nat on my router, but all i'm able to do is ping from the router to any host on the internet, however, im not able to access the internet from my pc, but i can ping the router, but not get pass that. Do i have to setup an access-list to allow internet access? june03

 

[yizhar]

HI.

You have probably missed this:
"This requires cooperation with your ISP."

Bye

Yizhar Hurwitz

http://come.to/yizhar

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

 

[june03]

It's my router. I have a Cisco 827 router as well as a Pix. Do i still need help from my ISP? I know VPN works with my Netgear rt311. thanks june03

 

[yizhar]

HI.

Try connecting the workstation directly to the router without the pix - but with proper IP address like 10.0.1.1.
(You might need to reboot the router or clear its arp cache).
Can you VPN now?

For disabling NAT at the router, you need some registered IP addresses and the ISP must configure their routers (and yours) with those IP addresses. This obviously requires their cooperation.

If you can VPN via the router with its current config, then using STATIC and maybe some access-list commands at the pix you might be able to VPN behind it, but you'll have to test without pix first.

Bye
Yizhar Hurwitz

http://come.to/yizhar

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

 

[june03]

I've tried it only behind the router, i get connected, but cant access or ping anything. Thank u for your help. I'll keep working at it and when i find a solution i will let u know. thank u again... june03