ip_src = layers[JSON_KEY_IP][JSON_KEY_IP_SRC]
ip_dst = layers[JSON_KEY_IP][JSON_KEY_IP_DST]
# Categorize source and destination IP addresses: local vs. non-local
ip_src = layers[JSON_KEY_IP][JSON_KEY_IP_SRC]
ip_dst = layers[JSON_KEY_IP][JSON_KEY_IP_DST]
# Categorize source and destination IP addresses: local vs. non-local