s_isakmp_etype
s_isakmp_etype(iph1->etype));
s_isakmp_etype(etype));
"begin %s mode.\n", s_isakmp_etype(etype));
s_isakmp_etype(iph1->etype),
s_isakmp_etype(isakmp->etype));
"phase1", s_isakmp_etype(iph1->etype),
extern const char *s_isakmp_etype(int);