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MSVPN client issue

sachin_mon
Level 1
Level 1

Hello,

I have the following setup:

Corporate Network---->FW------>PERIMETER ROUTER(no vpn support)----->internet(dial up)------>MSvpnclient

I want to create the vpn tunnel between PIX FW & MSvpnclient(laptop user).

I have configured the PIX for pptp but somehow iam not able to achieve the ping to

the corporate network client machine sitting on the internet using a laptop(dial up).

1.Should I need vpn support on the perimeter router?

2.Should I need to add any route on the perimeter router?

3.Any guess whether iam missing anything in the PIX configuration?

Configuration is as follows.

PIX Version 6.3(4)

interface ethernet0 auto

interface ethernet1 auto

interface ethernet2 auto shutdown

nameif ethernet0 outside security0

nameif ethernet1 inside security100

nameif ethernet2 intf2 security4

enable password xxx

passwd xxx

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

access-list inside_outbound_nat0_acl permit ip any 192.168.70.48 255.255.255.248

access-list inside_outbound_nat0_acl permit ip any 10.1.1.0 255.255.255.224

access-list inside_outbound_nat0_acl permit ip any 10.1.1.24 255.255.255.248

pager lines 24

icmp permit any inside

mtu outside 1500

mtu inside 1500

mtu intf2 1500

ip address outside x.x.x.x 255.255.255.240

ip address inside 192.168.50.11 255.255.255.0

no ip address intf2

ip audit info action alarm

ip audit attack action alarm

ip local pool vpnpool 192.168.70.50-192.168.70.55

global (outside) 10 interface

nat (inside) 0 access-list inside_outbound_nat0_acl

nat (inside) 10 0.0.0.0 0.0.0.0 0 0

rip inside default version 2

route outside 0.0.0.0 0.0.0.0 203.199.128.241 1

timeout xlate 3:00:00

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 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

no snmp-server location

no snmp-server contact

snmp-server community public

no snmp-server enable traps

floodguard enable

sysopt connection permit-pptp

crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac

isakmp enable outside

console timeout 0

vpdn group PPTP-VPDN-GROUP accept dialin pptp

vpdn group PPTP-VPDN-GROUP ppp authentication pap

vpdn group PPTP-VPDN-GROUP ppp authentication chap

vpdn group PPTP-VPDN-GROUP ppp authentication mschap

vpdn group PPTP-VPDN-GROUP ppp encryption mppe 40

vpdn group PPTP-VPDN-GROUP client configuration address local vpnpool

vpdn group PPTP-VPDN-GROUP pptp echo 60

vpdn group PPTP-VPDN-GROUP client authentication local

vpdn username VPN password *********

vpdn enable outside

dhcpd lease 3600

dhcpd ping_timeout 750

dhcpd auto_config outside

dhcpd enable inside

terminal width 80

Thanks..

Sack

2 Replies 2

shchaudh
Level 1
Level 1

Hi,

On the Pix config, add the following commands on the config mode:

isakmp nat-t 20

man i

On the perimeter router make sure that the udp port 500 and 4500 is opened, if not add acl that permits the same.

Hope this shud fix the issue..:)

for further questions, reach me at shwetajuneja@hotmail.com

csturmey
Level 1
Level 1

Sack,

The inside ip address on your PIX is 192.168.50.11/24 and your vpnpool is from 192.168.70.50 to 192.168.70.55 which is in a different network. That is why you cannot ping.

Colin