Cisco Pix 501 vpn PPTP /Windows Xp 1

[anerikkehvadderskals]

Hey there,

Trying to make vpn with a Windows XP Client trough a Pix 501 using pptp. Seems to work fine, I get an address from the Pix but i cannot ping/access anything on my private network. This is how is looks, what is my problem ?????

PIX Version 6.1(3)
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname pix
domain-name domain.dk
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 acl_out permit tcp any host 212.x.x.x eq smtp
access-list acl_out permit tcp any host 212.x.x.x eq pop3
access-list acl_out permit tcp any host 212.x.x.x eq www
access-list 101 permit ip 192.168.1.0 255.255.255.0 10.0.0.0 255.255.255.0
pager lines 24
interface ethernet0 10baset
interface ethernet1 10full
mtu outside 1500
mtu inside 1500
ip address outside 212.x.x.x 255.255.255.248
ip address inside 192.168.1.100 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool pptp-pool 10.0.0.1-10.0.0.50
pdm location 192.168.1.0 255.255.255.255 inside
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list 101
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
static (inside,outside) 192.168.1.0 10.0.0.0 netmask 255.255.255.255 0 0
conduit permit icmp any any
route outside 0.0.0.0 0.0.0.0 212.x.x.x
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:
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 192.168.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-pptp
no sysopt route dnat
telnet 192.168.1.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
vpdn group 1 accept dialin pptp
vpdn group 1 ppp authentication pap
vpdn group 1 ppp authentication chap
vpdn group 1 ppp authentication mschap
vpdn group 1 ppp encryption mppe 40
vpdn group 1 client configuration address local pptp-pool
vpdn group 1 pptp echo 60
vpdn group 1 client authentication local
vpdn username cisco password cisco
vpdn enable outside
terminal width 80

 

[cfwdude]

I solved this by issueing my vpn clients my internal DNS and WINS servers. You can also create an lmhosts file, but it will involve more maintenance down the road.

 

[yizhar]

HI.

Here are some comments, some of them not related to the issue:

* You should use syslog messages to gather more info about the problem, and for regular monitoring of the pix.

> static (inside,outside) 192.168.1.0 10.0.0.0 netmask 255.255.255.255
I don't understand what this is for, and anyway it is wrong. Try to remove it and "clear xlate".
But you need to add static command for your mail server.

> conduit permit icmp any any
It is best not to combine access-list and conduit.
Do not use the obsolute conduit command.

> vpdn group 1 ppp authentication pap
> vpdn group 1 ppp authentication chap
You should remove the PAP and CHAP commands, because MPPE encryption requires MSCHAP.
> vpdn group 1 ppp encryption mppe 40
This is better:
vpdn group 1 ppp encryption mppe 40 required

Bye
Yizhar Hurwitz

http://come.to/yizhar

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