Sr(s), ;) I have been a problem with this scenario. When I compile iptables, see this error: " extensions/libipt_string.c: In function `init': extensions/libipt_string.c:66: error: structure has no member named `to_offset' extensions/libipt_string.c:67: error: structure has no member named `to_offset' extensions/libipt_string.c: In function `parse_string': extensions/libipt_string.c:73: error: `IPT_STRING_MAX_PATTERN_SIZE' undeclared (first use in this function) extensions/libipt_string.c:73: error: (Each undeclared identifier is reported only once extensions/libipt_string.c:73: error: for each function it appears in.) extensions/libipt_string.c:74: error: structure has no member named `pattern' extensions/libipt_string.c:74: error: structure has no member named `pattern' extensions/libipt_string.c:74: error: structure has no member named `pattern' extensions/libipt_string.c:75: error: structure has no member named `patlen' extensions/libipt_string.c: In function `parse_algo': extensions/libipt_string.c:84: error: `IPT_STRING_MAX_ALGO_NAME_SIZE' undeclared (first use in this function) extensions/libipt_string.c:85: error: structure has no member named `algo' extensions/libipt_string.c:85: error: structure has no member named `algo' extensions/libipt_string.c:85: error: structure has no member named `algo' extensions/libipt_string.c: In function `parse_hex_string': extensions/libipt_string.c:131: error: structure has no member named `pattern' extensions/libipt_string.c:153: error: structure has no member named `pattern' extensions/libipt_string.c:159: error: structure has no member named `pattern' extensions/libipt_string.c:162: error: `IPT_STRING_MAX_PATTERN_SIZE' undeclared (first use in this function) extensions/libipt_string.c:166: error: structure has no member named `patlen' extensions/libipt_string.c: In function `parse': extensions/libipt_string.c:189: error: structure has no member named `from_offset' extensions/libipt_string.c:196: error: structure has no member named `to_offset' extensions/libipt_string.c:214: error: structure has no member named `patlen' extensions/libipt_string.c:214: error: structure has no member named `pattern' extensions/libipt_string.c: In function `print': extensions/libipt_string.c:304: error: structure has no member named `pattern' extensions/libipt_string.c:304: error: structure has no member named `patlen' extensions/libipt_string.c:306: error: structure has no member named `pattern' extensions/libipt_string.c:306: error: structure has no member named `patlen' extensions/libipt_string.c:309: error: structure has no member named `pattern' extensions/libipt_string.c:309: error: structure has no member named `patlen' extensions/libipt_string.c:311: error: structure has no member named `algo' extensions/libipt_string.c:312: error: structure has no member named `from_offset' extensions/libipt_string.c:313: error: structure has no member named `from_offset' extensions/libipt_string.c:314: error: structure has no member named `to_offset' extensions/libipt_string.c:315: error: structure has no member named `to_offset' extensions/libipt_string.c: In function `save': extensions/libipt_string.c:326: error: structure has no member named `pattern' extensions/libipt_string.c:326: error: structure has no member named `patlen' extensions/libipt_string.c:328: error: structure has no member named `pattern' extensions/libipt_string.c:328: error: structure has no member named `patlen' extensions/libipt_string.c:331: error: structure has no member named `pattern' extensions/libipt_string.c:331: error: structure has no member named `patlen' extensions/libipt_string.c:333: error: structure has no member named `algo' extensions/libipt_string.c:334: error: structure has no member named `from_offset' extensions/libipt_string.c:335: error: structure has no member named `from_offset' extensions/libipt_string.c:336: error: structure has no member named `to_offset' extensions/libipt_string.c:337: error: structure has no member named `to_offset' extensions/libipt_string.c: At top level: extensions/libipt_string.c:345: error: structure has no member named `config' extensions/libipt_string.c:345: error: initializer element is not constant extensions/libipt_string.c:345: error: (near initialization for `string.userspacesize') make: ** [extensions/libipt_string_sh.o] Erro 1 " I didn´t find nothing similar related? Can you help me? regards, R.Alves