On Sun, 11 Jul 2010 02:34:26 -0500
Matthew Grooms <[email protected]> wrote:

> 
> Your best bet is to always use matching lifetime values.
> 

Hi Matthew, thanks for the detailed response.  Matching the lifetimes
has really helped stabilize one of my VPNs.

However, for the other VPN, when Phase 1 expires, the VPN breaks.
Based on info from Shrew and the gateway it looks like some form of
re-authentication is occurring (Shrew seems to re-send PAP).  This
appears to cause the gateway to assign a new virtual adapter IP, but
Shrew does not appear to realize this - at least, the virtual adapter
IP on the client does not change and no reference to a new
configuration appears in the Shrew iked trace.

Is assigning a new IP normal/permitted? Or is this a sign that I haven't
quite got the configs right between the client and gateway?

For what it's worth, the client is only able to connect if it is set to
'ike config pull'.
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