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VPN Client 4.6 connects on one computer but not another

bjitima22
Level 1
Level 1

I have a dynamic VPN set up on a Pix 501 in our office. When I connect from my home computer, it gets in successfully, but if I plug my notebook into the same LAN as my home computer it kicks me out. Our service software is installed on my notebook, so that's what I really need to connect with. The settings in the VPN client are identical. If anybody has any ideas I would be glad to post a copy of our config and the debugs that I have when each of the two computers attempts to log in.

Thanks,

Ben Jitima

jitima2@marshall.edu

4 Replies 4

jackko
Level 7
Level 7

it sounds like the current pix is not accepting remote vpn with pat. try put the command "isakmp nat-traversal 20" into the pix.

if that can't resolve the issue, please post the config.

I already had the nat-traversal set. Like I said, I am able to connect with another computer, set up exactly the same, on the same LAN. After I posted last night, I had a chance to try it through a different internet connection with the same laptop and it was able to connect. When I did this, I tested our tracking software and was unable to connect to it. It is SQL based and tries to find the database with the hostname of the server. I now need to try and find a solution for that as well. *sighs*

Anyway, here is the config. I did crypto ip and crypto is debugs. If you think either of these would help, I will post them as well.

PIX Version 6.3(4)

interface ethernet0 auto

interface ethernet1 100full

nameif ethernet0 outside security0

nameif ethernet1 inside security100

enable password encrypted

passwd encrypted

hostname ***

domain-name *******

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

access-list inbound permit tcp any host x.x.x.x eq 3389

access-list inbound permit udp any host x.x.x.x eq 3389

access-list inbound permit tcp any host x.x.x.x eq citrix-ica

access-list inbound permit icmp any any

access-list dyn permit ip 192.168.1.0 255.255.255.0 192.168.100.0 255.255.255.0

access-list nonat permit ip 192.168.1.0 255.255.255.0 192.168.100.0 255.255.255.

0

pager lines 24

mtu outside 1500

mtu inside 1500

ip address outside x.x.x.x 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 dynamic_pool 192.168.100.1-192.168.100.10

pdm logging informational 100

pdm history enable

arp timeout 14400

global (outside) 1 interface

nat (inside) 0 access-list nonat

nat (inside) 1 0.0.0.0 0.0.0.0 0 0

static (inside,outside) tcp interface 3389 192.168.1.99 3389 netmask 255.255.255

.255 0 0

static (inside,outside) udp interface 3389 192.168.1.99 3389 netmask 255.255.255

.255 0 0

static (inside,outside) tcp interface citrix-ica 192.168.1.99 citrix-ica netmask

255.255.255.255 0 0

access-group inbound in interface outside

route outside 0.0.0.0 0.0.0.0 x.x.x.x 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 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-ipsec

crypto ipsec transform-set 3des_md5 esp-3des esp-md5-hmac

crypto dynamic-map dynamic 10 set transform-set 3des_md5

crypto map vpn 65000 ipsec-isakmp dynamic dynamic

crypto map vpn interface outside

isakmp enable outside

isakmp identity address

isakmp nat-traversal 20

isakmp policy 1 authentication pre-share

isakmp policy 1 encryption 3des

isakmp policy 1 hash md5

isakmp policy 1 group 2

isakmp policy 1 lifetime 86400

vpngroup group address-pool dynamic_pool

vpngroup group dns-server 63.x.x.x.90.67.11

vpngroup group default-domain *****

vpngroup group split-tunnel dyn

vpngroup group idle-time 1800

vpngroup group password ********

telnet 0.0.0.0 0.0.0.0 inside

telnet timeout 5

ssh x.x.x.x 255.255.255.255 outside

ssh 0.0.0.0 0.0.0.0 inside

ssh timeout 60

console timeout 0

terminal width 80

You may have a dns or wins issue. What os is running on the laptop? If it is an ms win version, then do this:

Examine the network connection's DNS Properties on the laptop and see if there is a hardcoded connection specific suffix. If so, does it match what the vpngroup domain name that is configured on the PIX? Also examine how the dns suffixes are appended.

Run the ipconfig /all command and see if you have the proper dns servers listed. See if they match what is configured on the vpngroup.

Let me know what you find.

I have both my notebook and my PC set up to get a DHCP address from my router, so they have the same DNS information. It worked on the PC and not the notebook.