PIX Newbie Question: MS PPTP on PIX not working.

[dougdrury]

PIX Newbie Question: MS PPTP on PIX

Im configuring a Cisco PIX 501 so the computers behind it can be accessed remotely over a VPN

connection. I am using PPTP right now because I want to learn that before getting the Cisco

VPN client. I will be doing both most likley.

I am using PIX 6.3(5) and PDM 3.0(4).

I used the VPN Wizard to create the PPTP Group. I am also using PAT instead of NAT.
Pretty much, I just set the PIX back to factory defaults and accepted all of the defaults in

the startup wizard. I am just learning on this lab PIX, so I can reset it anytime I want.

So far, Ive been able to successfully establish a connection (using MS PPTP client on Windows

XP), but I cant access any of the machines. I get an IP address from the local pool, but the

subnet mask and gateway IP are all jacked up.

PPP adapter TestPPTP:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-53-45-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.200
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 192.168.0.200

I am attaching my config. Please take a look and give me some ideas. I am a total newbie at

firewalls and VPNs, so I am sure I am doing something stupid.

-------------------------------------------------------
: Saved
: Written by enable_15 at 10:57:07.402 UTC Thu Aug 17 2006
PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password **************** encrypted
passwd ************ encrypted
hostname pixfirewall
domain-name ciscopix.com
fixup protocol dns maximum-length 512
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names
object-group network LocalUsers
network-object 192.168.1.0 255.255.255.0
access-list inside_outbound_nat0_acl permit ip any 192.168.0.192 255.255.255.224

pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside *.*.*.246 255.255.255.248
ip address inside 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool VPN 192.168.0.200-192.168.0.210
pdm location 192.168.0.192 255.255.255.224 outside
pdm group LocalUsers inside
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
route outside 0.0.0.0 0.0.0.0 *.*.*.241 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 sip-disconnect 0:02:00 sip-invite 0:03:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server TACACS+ max-failed-attempts 3
aaa-server TACACS+ deadtime 10
aaa-server RADIUS protocol radius
aaa-server RADIUS max-failed-attempts 3
aaa-server RADIUS deadtime 10
aaa-server LOCAL protocol local
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
telnet timeout 5
ssh timeout 5
console timeout 0
vpdn group PPTP-VPDN-GROUP accept dialin pptp
vpdn group PPTP-VPDN-GROUP ppp authentication mschap
vpdn group PPTP-VPDN-GROUP ppp encryption mppe auto required
vpdn group PPTP-VPDN-GROUP client configuration address local VPN
vpdn group PPTP-VPDN-GROUP pptp echo 60
vpdn group PPTP-VPDN-GROUP client authentication local
vpdn username dougdrury password ********
vpdn enable outside
vpdn enable inside
dhcpd address 192.168.1.2-192.168.1.254 inside
dhcpd dns 206.13.28.12 63.200.115.40
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
dhcpd enable inside
terminal width 80
Cryptochecksum:*****************************
-------------------------------------------------------

Thanks!

 

[karmic]

My brain isn't working very well tonite but from what I see, you don't have a vpn dhcp pool, and there's no room to create one. Try adjusting your local dhcp pool to a range of say 192.168.1.100 - 192.168.1.150. That will give you room to create a pool for outside users...

I personally like the combonation of using the pdm with telnet, some things are just easier in the graphical sense

If you want to try it, add
http 192.168.1.0 255.255.255.0 inside
to your list. From your browser, use the address

https://192.168.1.1

and you should be able to log in with just the enable password.

If the pdm doesn't load, you may have to update your java.

~ K.I.S.S - Don't make it any more complex than it has to be ~