PROBLEM: xt_state compiles without errors but cannot be loaded

PROBLEM: xt_state compiles without errors but cannot be loaded

[Administrative Services]

[1.] module: xt_state compiles without errors but cannot be loaded

[2.] Here's what shows up in /var/log/messages:

kernel: xt_state: Unknown symbol nf_conntrack_untracked

kernel: xt_state: Unknown symbol nf_ct_l3proto_module_put

kernel: xt_state: disagrees about version of symbol xt_unregister_matches

kernel: xt_state: Unknown symbol xt_unregister_matches

kernel: xt_state: Unknown symbol nf_ct_l3proto_try_module_get

kernel: xt_state: disagrees about version of symbol xt_register_matches

kernel: xt_state: Unknown symbol xt_register_matches


[3.] modules, netfilter:

[4.] 2.6.20:

[5.] 2.6.19.2 possibly 2.6.9.3:

[7.] try loading module using insmod

[8.] CentOS 4.4
[8.1.] apf 0.9.6 (modified to use xt_state), and insmod