Still not resolving Netbios over tcp/ip on a client VPN connection to a PIX

Posted on 2004-08-30
Last Modified: 2012-05-05
hello everybody,
still I can not get netbios name resolved from a client VPN connection to a 515 PIX firewall and using a radius for authentication. VPN is connecting fine. I am able to ping all internal IP but when I try to search for a computer name to map a drive, it cannot find it. Do I need wins installed?? The internal W2k server has the default gateway pointing to the inside PIX interface. follws the PIX configuration.  (internal ip:, external public:x.x.230.134)

PIX Version 6.0(1)
nameif ethernet0 outside security0
nameif ethernet1 inside security100
nameif ethernet2 dmz security50
enable password Yn8Esq3NcXIHL35v encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname mypix
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 1720
fixup protocol rsh 514
fixup protocol sqlnet 1521
fixup protocol sip 5060
fixup protocol skinny 2000
fixup protocol http 8080
no fixup protocol smtp 25
access-list outside_access_in permit icmp any any echo-reply
access-list outside_access_in permit icmp any any time-exceeded
access-list outside_access_in permit icmp any any unreachable
access-list outside_access_in permit tcp any host x.x.230.130 eq smtp
access-list outside_access_in permit tcp any host x.x.230.130 eq www
access-list outside_access_in permit tcp any host x.x.230.130 eq 8080
access-list outside_access_in permit tcp any host x.x.230.130 eq 443
access-list outside_access_in permit tcp any any eq 1080
access-list outside_access_in permit gre any any
access-list outside_access_in permit tcp any any eq 1723
access-list pptp-list permit ip
pager lines 24
logging on
interface ethernet0 auto
interface ethernet1 auto
interface ethernet2 auto
mtu outside 1500
mtu inside 1500
mtu dmz 1500
ip address outside x.x.230.134
ip address inside
ip address dmz
ip audit info action alarm
ip audit attack action alarm
ip local pool pptp-pool
no failover
failover timeout 0:00:00
failover poll 15
failover ip address outside
failover ip address inside
failover ip address dmz
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list pptp-list
nat (inside) 1 0 0
static (inside,outside) x.x.230.130 netmask 0 0
access-group outside_access_in in interface outside
route outside x.x.230.129 1
route inside 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h323 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 RADIUS (inside) host secret123 timeout 5
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 inside
telnet timeout 60
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 client configuration dns
vpdn group 1 client authentication aaa RADIUS
vpdn group 1 client accounting RADIUS
vpdn group 1 pptp echo 60
vpdn enable outside
terminal width 80
Question by:ggmisadmin
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LVL 23

Assisted Solution

by:Tim Holman
Tim Holman earned 100 total points
ID: 11934249
If you can install a WINS server, and add this to your vpdn group config, then problem will be solved, eg:

vpdn group 1 client configuration wins

LVL 79

Accepted Solution

lrmoore earned 100 total points
ID: 11934384
Agree with Tim.
WINS is definately the answer, unless you have Active Directory and mostly XP clients. Then you need Dynamic DNS enabled..
A temporary measure would be to setup a LMHOSTS file (can be on a shared network drive, accessible once the connection is made). Only two entries are really necessary for the domain controller...


Expert Comment

ID: 11934445
You should have configured your RRAS Server to configure DHCP for your VPN Client with the settings for your DNS and Wins Servers.

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Author Comment

ID: 11935701
It seems like WINS is the solution. I am able to resolve the names!

To conclude: What king of application do I need to configure on the server in order to have user at home able to login into W2K and have their profile loaded into their home PCs? (Is it actually possible???)
Thanks for your help....  
LVL 23

Assisted Solution

by:Tim Holman
Tim Holman earned 100 total points
ID: 11950209
I wouldn't bother doing this.  W2K roaming profiles can run into 100s of Mbs, and you'll only upset people if you send them this much traffic !
The Cisco VPN Client does have a Start Before Logon (SBL) feature though, which means the tunnel is brought up before the user actually logs onto his/her machine at home.  So, in affect, they're on the domain straightaway.

Expert Comment

ID: 11951084
Have them cache their profiles as offline files.


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