[Openswan Users] ipsec.secrets for a host with a dynamic IP

[Nick Howitt]

Hi,

I have a dynamic (almost static) IP address with a tunnel I initiate to 
another router. Currently my ipsec.secrets reads:

myfqdn farfqdn : PSK "shared secret"

In the ipsec.conf I can use %defaultroute for left so if my IP changes 
it always picks up the correct one. In ipsec.secrets I cannot see any 
equivalent parameter so I use myfqdn instead. This means that if my IP 
changes I have to wait for the change to ripple through the Dynamic DNS 
system before I can reconnect the tunnel. An alternative would be to 
write a script and make the script insert my IP into the ipsec.secrets 
file. This is pretty inelegant. Is there any alternative or can 
%defaultroute be made to work? I understand a script may still be needed 
to monitor a change in my IP (or a tunnel drop) and reload 
ipsec.secrets, but that would be better than having to wait for the 
Dynamic DNS system to catch up.

Thanks,

Nick