MAC addresses, hostnames, and DHCP

[John Abreau]

Bill McGonigle wrote:
> On Dec 1, 2005, at 15:47, John Abreau wrote:
> 
>> I believe this will work transparently if you're running the ssh 
>> session over a VPN that's sitting on top of the "real" network 
>> connection.
> 
> 
> I was wondering about that - the remote end should be absolutely fine.  
> What I wonder is about the local end - when you disconnect from the VPN 
> then reestablish the connection the local ssh process will see the IP 
> address change 3 times.  If it's watching or notices or cares, etc.  I 
> think it will be OK, assuming you wind up with the same VPN IP 
> allocation on the reconnect (so you configure it so it works that 
> way...) but haven't tested yet.

Um, when you disconenct from the VPN, then reestablish it after 
switching from wired to wireless, the VPN session will still use the 
same IP address, so the ssh session will never see the IP address 
change. The change in the underlying "real" address will be invisible to 
the ssh session.

-- 
John Abreau / Executive Director, Boston Linux & Unix
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