[KLUG Members] WINS using old IP address question

[bill]

On Wed, 2005-07-13 at 22:27, Mike Williams wrote:

> >Sometimes when I log in to a network with a computer I get a different
> >IP address than I did logging in last time with the same computer.  This
> >might happen by logging in wirelessly or logging in remotely with
> >OpenVPN.
> >
> >For example: 
> >
> >First time:  192.168.0.100
> >Second time: 192.168.0.200

> >When I do 
> >
> >smbclient -L mycomputer
> >
> >it tries to connect to the old IP address, even when the box is on the
> >network with a new IP address. 
> >
> The dhcp and DNS server are supposed to be able to talk to each other, 
> and the dhcp server will update dynamic DNS records on the DNS server so 
> that you can find dynamic IP machines by their name, whatever their 
> current IP address is.  

I'm confused here.  Local addresses are being obtained through WINS, not
the DNS server.  The only DNS servers I use are from the ISP and so only
count for domains on the internet.

> The key phrase here is "supposed to", though.  
> I've gotten it to work maybe half the time.  I've heard Adam suggest 
> that this is much easier and more reliable if done through LDAP.

> >Is there a way to announce when logging in, "Hey, I'm over here now!"  ?
> >
> Depends a bit on what version of Windows / samba you're using.  Old 
> versions of Windows (pre-2000) didn't use DNS much, so they'd look based 
> on NetBIOS names (ask the WINS server).  When NetBIOS names are working 
> properly, the machine does announce itself when it powers up, but this 
> is a very broken system, and you're better off without it.  Windows 2000 
> and later, and Linux/samba prefer DNS lookups to NetBIOS broadcasts or 
> WINS queries..

I'm pretty sure that because there is no DNS on the LAN that lookups
have to be by NetBIOS or WINS.

> The easiest solution would be to give the samba server a static IP 
> address.  Either by not using dhcp on that box or setting up a reserved 
> address for that machine on the dhcp server.  A reserved address means 
> that this the dhcp server will only give this particular IP to this 
> particular MAC address.

The samba server does have a static IP address.

kind regards,

bill