I am still a bit confused about your topology and about your problem. Can you clarify whether the device that is issuing the broadcast is within the subnet and sending broadcast to the subnet or if it is outside the subnet and sending the broadcast.
If the source of the broadcast is outside the subnet then I believe that I understand the problem and can suggest a solution. First lets be clear about some terminology. If a packet is sent from outside the subnet to the subnet broadcast address then this is termed as a directed broadcast. And directed broadcast is not enabled by default in the IOS. There is an interface configuration command ip directed-broadcast. If you configure that command on the interface then it will enable forwarding of directed broadcasts from outside onto the interface and will reach all the devices within the subnet.
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
The need was to reach an host inside a LAN through a VPN connection managed by the LAN gateway (Cisco 1921).
The LAN gateway performs NAT and there was a dedicate nat rule for the host i wanted to reach through VPN.
I couldn't connect to the hos...