Symbol: IPPROTO_ESP
sys/net/altq/altq_subr.c
1000
#define IPPROTO_ESP 50 /* encapsulating security payload */
sys/netinet/in.h
185
#define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */
sys/netpfil/ipfilter/netinet/ip_compat.h
903
# define IPPROTO_ESP 50