ipfr
struct ipfr *ifr;
struct ipfr *ipfrtab[IPFT_SIZE], ifr;
extern void printfraginfo __P((char *, struct ipfr *));
struct ipfr *ipfr_hnext, **ipfr_hprev;
struct ipfr *ipfr_next, **ipfr_prev;
struct ipfr **ifs_table;
struct ipfr **ifs_nattab;