1. A method for redirected firewall discovery, the method comprising: transmitting a network flow from a source node to a first firewall; transmitting, from the source node to a second firewall, metadata associated with the network flow; receiving, from the first firewall at the source node, a discovery redirect including information identifying the first firewall; and in response to receiving the discovery redirect, transmitting the metadata from the source node to the first firewall, the metadata associated with a network policy applicable to the network flow at the first firewall.