in my multichain.conf, i have a line:
 
rpcallowip=173.26.0.3
 
yeah, i'm in a private Ip space.  problem is that my local system (with my IDE) is assigned a variable IP address via DHCP (this is a vpn connection).    sometimes the local system gets a different IP address.... thus causing me to reconfig multichain.conf.   is there a way to specify an address range?