Cisco PIX VPN problem

[vbjr]

Hi there,

I have managed to be able to connect to setup the pix firewall so it can act as a vpn server for site to site and mschap auth for window users.

Site to site works fine and can see the computers inside the LAN of 192.168.16.x
But when a user connects to the vpn through the MSCHAP auth on windows, it cannot see the computers in the LAN 192.168.16.x
I was wondering where I have gone wrong?

The network layout looks something like this:

[internet] --> [adsl router (192.168.1.1) --> [PIX (192.168.1.2)-outside (192.168.16.254)-inside] ---> LAN SWITCH --> computers

The adsl router is setup to have the pix on its DMZ zone.

When a windows user connects to the vpn he recieved an ip from the vpnpool of; 172.16.81.x
Looking at the settings, it has a default gateway of 192.168.1.2

If you guys can spot anything that would be great.

Thanks very much in advanced.

----------------------------------------------------
Here is my config: (i have * some passwords and ips)
----------------------------------------------------

Building configuration...
: Saved
:
PIX Version 6.3(1)
interface ethernet0 10baset
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password ******** encrypted
passwd ********** encrypted
hostname krakenldn
domain-name krakengroup.com
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol ils 389
fixup protocol pptp 1723
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
no fixup protocol smtp 25
fixup protocol sqlnet 1521
names
name 192.168.0.0 Gsy_LAN
name 192.168.16.2 Lserver
name 192.168.220.0 Asl
access-list vpnusers_splitTunnelAcl permit ip 192.168.16.0 255.255.255.0 any
access-list inside_outbound_nat0_acl permit ip 192.168.16.0 255.255.255.0 172.16.81.0 255.255.255.0
access-list inside_outbound_nat0_acl permit ip 192.168.16.0 255.255.255.0 Gsy_LAN 255.255.255.0
access-list inside_outbound_nat0_acl permit ip 192.168.16.0 255.255.255.0 Asl 255.255.255.0
access-list outside_cryptomap_dyn_20 permit ip any 172.16.81.0 255.255.255.0
access-list outside_cryptomap_20 permit ip 192.168.16.0 255.255.255.0 Gsy_LAN 255.255.255.0
access-list outside_access_in remark email rule - feb 2005
access-list outside_access_in permit tcp Gsy_LAN 255.255.255.0 any eq smtp
access-list outside_access_in permit tcp any host 192.168.2.1 eq www
access-list outside_access_in remark terminal serives
access-list outside_access_in permit tcp any host Lserver eq 3389
access-list outside_cryptomap_40 permit ip 192.168.16.0 255.255.255.0 Asl 255.255.255.0
pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside 192.168.1.2 255.255.255.0
ip address inside 192.168.16.254 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool vpnpool 172.16.81.1-172.16.81.254
ip local pool myvpnpool 192.168.16.100-192.168.16.110
pdm location 192.168.1.0 255.255.255.0 inside
pdm location Lserver 255.255.255.255 inside
pdm location 213.163.192.48 255.255.255.240 outside
pdm location Gsy_LAN 255.255.255.0 outside
pdm location Asl 255.255.255.0 outside
pdm location ****255.255.255.255 outside
pdm location **** 255.255.255.255 outside
pdm location *******255.255.255.255 outside
pdm location ****** 255.255.255.0 outside
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
static (inside,outside) 192.168.2.1 Lserver netmask 255.255.255.255 0 0
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 192.168.1.1 1
timeout xlate 0:05:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
timeout h323 0:05:00 mgcp 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 ******* 255.255.255.240 outside
http Lserver 255.255.255.255 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
sysopt connection permit-pptp
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac
crypto dynamic-map outside_dyn_map 20 match address outside_cryptomap_dyn_20
crypto dynamic-map outside_dyn_map 20 set transform-set ESP-3DES-MD5
crypto map outside_map 20 ipsec-isakmp
crypto map outside_map 20 match address outside_cryptomap_20
crypto map outside_map 20 set peer *********
crypto map outside_map 20 set transform-set ESP-3DES-MD5
crypto map outside_map 40 ipsec-isakmp
crypto map outside_map 40 match address outside_cryptomap_40
crypto map outside_map 40 set peer ********
crypto map outside_map 40 set transform-set ESP-AES-256-SHA
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map interface outside
crypto map outsidemap 40 ipsec-isakmp
isakmp enable outside
isakmp key ******** address **********netmask 255.255.255.255 no-xauth no-config-mode
isakmp key ******** address ********* netmask 255.255.255.255 no-xauth no-config-mode
isakmp identity address
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption 3des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
isakmp policy 40 authentication pre-share
isakmp policy 40 encryption aes-256
isakmp policy 40 hash sha
isakmp policy 40 group 2
isakmp policy 40 lifetime 28800
vpngroup vpnusers address-pool vpnpool
vpngroup vpnusers dns-server Lserver
vpngroup vpnusers split-tunnel vpnusers_splitTunnelAcl
vpngroup vpnusers idle-time 1800
vpngroup vpnusers password ********
telnet ******** 255.255.255.255 outside
telnet ******** 255.255.255.255 outside
telnet ******** 255.255.255.255 outside
telnet ******** 255.255.255.0 outside
telnet 192.168.16.0 255.255.255.0 inside
telnet timeout 5
ssh ******** 255.255.255.240 outside
ssh timeout 5
console timeout 0
vpdn group mygroup accept dialin pptp
vpdn group mygroup ppp authentication mschap
vpdn group mygroup ppp encryption mppe 128 required
vpdn group mygroup client configuration address local vpnpool
vpdn group mygroup pptp echo 60
vpdn group mygroup client authentication local
vpdn username ceo password *********
vpdn username diamond password *********
vpdn enable outside
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
vpnclient server **********
vpnclient mode client-mode
vpnclient vpngroup ******* password ********
vpnclient username ******* password ********
terminal width 80
Cryptochecksum:****************
: end
[OK]

 

[vbjr]

Oh I think I know what the problem is but not sure how to implement it, I would need to setup a split tunnel for the MSCHAP VPN.

Any ideas how its done?

Probably something to do with the nat command I guess to allow the traffic from 172.16.81.0 to go through 192.168.16.0 ?