non routable ips can't connect when the internet line is down

[Jan van Rensburg]

hi, 
i don't know if this is samba PDC related, so please excuse me if it's not.
we're running samba 2.0.4 and every time our internet line goes down clients
that have non-routable ips can't connect to the samba server. the non routable
ips doesn't have any reverse lookup (DNS) addresses. the moment the internet
line comes up again everything is fine again.

our network setup looks something like this:


[network with samba
server]---------firewall-------router-----------------internet
			               |
				       |
				[non routable ips]

i've made sure that the firewall does let the packets through, even when the
lines goes down. here is an extract from the logs of one non-routable ip
computer (win95):


[1999/06/22 08:35:35, 0] lib/util_sock.c:write_data(415)
  write_data: write failure. Error = Broken pipe                                
[1999/06/22 08:35:35, 0] lib/util_sock.c:write_socket(191)
  write_socket: Error writing 4 bytes to socket 6: ERRNO = Broken pipe
[1999/06/22 08:35:35, 0]
lib/util_sock.c:send_smb(606)                            
Error writing 4 bytes to client. -1. Exiting
[1999/06/22 09:59:57, 0] lib/util_sock.c:write_data(415)
  write_data: write failure. Error = Broken pipe                                
[1999/06/22 09:59:57, 0] lib/util_sock.c:write_socket(191)
  write_socket: Error writing 4 bytes to socket 6: ERRNO = Broken pipe
[1999/06/22 09:59:57, 0] lib/util_sock.c:send_smb(606)
  Error writing 4 bytes to client. -1. Exiting
[1999/06/22 10:00:02, 0] lib/util_sock.c:write_data(415)
  write_data: write failure. Error = Broken pipe
[1999/06/22 10:00:02, 0] lib/util_sock.c:write_socket(191)
  write_socket: Error writing 4 bytes to socket 6: ERRNO = Broken pipe
[1999/06/22 10:00:02, 0] lib/util_sock.c:send_smb(606)
  Error writing 4 bytes to client. -1. Exiting                   

we have another site with the same setup that has exactly the same behaviour, so
the problems is definitley reproducable.

thank you,

-- jan van rensburg

When I was crossing the border into Canada, they asked if
I had any firearms with me.  I said, "Well, what do you need?"
		-- Steven Wright