Virtual IP Alias & DHCP client failure

[frakkin64]

I am using 24.1.7_4, my WAN is connected to my cable modem (it is a bridged configuration) which OPNsense uses DHCP to acquire the public-facing network address.  I also have a Virtual IP setup as an IP Alias to setup an extra private network IP on the WAN interface and a route to my modem's administration interface.  This is all working fine (any computer on the network behind OPNsense can access the admin interface on the modem) until the modem goes down and the OPNsense DHCP client fails, it appear dhclient-script is wiping the route and the alias while I am expecting it not to do that.

I guess the question is am I using the wrong feature, or is this a bug?