Hi all, I am new to netfilter and even linux. I just wish to try the example code in the man page of libipq (I saved it as test.c and have compiled it to test.o). But when I make it: #cc test.o -o test, the following errors showed up: [root@kite1 netfilter]# cc test.o -o test test.o(.text+0xf): In function `die': : undefined reference to `ipq_perror' test.o(.text+0x1d): In function `die': : undefined reference to `ipq_destroy_handle' test.o(.text+0x49): In function `main': : undefined reference to `ipq_create_handle' test.o(.text+0x81): In function `main': : undefined reference to `ipq_set_mode' test.o(.text+0xb8): In function `main': : undefined reference to `ipq_read' test.o(.text+0xe4): In function `main': : undefined reference to `ipq_message_type' test.o(.text+0x116): In function `main': : undefined reference to `ipq_get_msgerr' test.o(.text+0x141): In function `main': : undefined reference to `ipq_get_packet' test.o(.text+0x18c): In function `main': : undefined reference to `ipq_set_verdict' test.o(.text+0x1ce): In function `main': : undefined reference to `ipq_set_verdict' collect2: ld returned 1 exit status I have installed iptables-1.2.9 following the instructions. Does it mean I have to link 'test.o' with another file (???.o or ???.so)? Thank you in advance! Jee
