Symbol: ipf_send_icmp_err
sys/netpfil/ipfilter/netinet/fil.c
3091
(void) ipf_send_icmp_err(ICMP_UNREACH, fin,
sys/netpfil/ipfilter/netinet/ip_fil.h
1708
extern int ipf_send_icmp_err(int, fr_info_t *, int);
sys/netpfil/ipfilter/netinet/ip_fil_freebsd.c
906
(void) ipf_send_icmp_err(ICMP_UNREACH, fin, 1);