[Samba] Windows 7 problem accessing domain member samba serve r on different subnet

Hoover, Tony hoover at sal.ksu.edu
Wed Dec 1 07:31:55 MST 2010

We recently ran into a similar issue.  If you have any microsoft "Live"
components installed on your 7 box, samba servers must be contacted by
numeric IP address rather than netbios (or even IP mnemonic) name.


Tony Hoover, Network Administrator
KSU - Salina, College of Technology and Aviation
(785) 826-2660

"Don't Blend in..."
-----Original Message-----
From: samba-bounces at lists.samba.org [mailto:samba-bounces at lists.samba.org]
On Behalf Of d
Sent: Tuesday, November 30, 2010 11:22 PM
To: samba at lists.samba.org
Subject: [Samba] Windows 7 problem accessing domain member samba server on
different subnet

Hi All,

I have a problem accessing Samba 3.0.33 on some CentOS 5 machines on a
different subnet from a Windows 7 computer.

All servers and computers are joined to a Windows 2003 AD domain.

I have identical samba machines on two subnets (CentOS/samba 3.0.33).
The samba machines on the same subnet as my Win 7 computer are accessible
both by the netbios name and ip address.

The samba machines on another subnet are only accessible by IP address. If I
attempt to access these samba servers using their netbios name, I get
prompted for a password.

This configuration has worked for some time, and all CentOS/samba machines
are accessible by Windows XP and 2003 using the netbios name.

I believe Windows 2008 servers have the same issues as Windows 7.
Access can only be made by IP address and not netbios name.

Is this a known issue, or something specific to my environment? I have been
googling this for some time and I cannot find any issue identical to this.

Some additional info:

security = domain
client use spnego = no
encrypt passwords = yes
ntlm auth = yes
lanman auth = yes
client ntlmv2 auth = yes
remote browse sync = remote announce = local master = no wins server = ip of ad wins server

 - Not using winbind but nss_ldap and AD schema extension to support POSIX
 - There are no packet filters between subnets.
 - The router is configured to dish out IPv6 addresses, and the Windows 7
machine has an IPv6 address, as do all the samba/centos machines. However,
the samba/centos machines don't have any AAAA records, and samba 3.0 does
not support IPv6.

I'm fairly stumped. Any tips?


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