setproto
rr frag age mssclamp nattag setproto purge
| no mapit ifnames addr setproto ';'
| no mapit ifnames mapfrom setproto ';'
| no mapblockit ifnames { yyexpectaddr = 1; } addr setproto ';'
redir: rdrit ifnames addr dport tlate dip nport setproto rdroptions
| no rdrit ifnames addr dport setproto ';'
| rdrit ifnames rdrfrom tlate dip nport setproto rdroptions
| no rdrit ifnames rdrfrom setproto ';'
| IPNY_PROTO setproto
setproto:
struct outproto *setproto(char *);
proto = setproto("icmp");
proto = setproto(optarg);