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What is the right way to log iptables as of kernel 3.9.0?

I can no longer append a logging rule such as:

# iptables --new-chain droplog
# iptables --append droplog --jump LOG --log-level info
iptables: No chain/target/match by that name.

I used to enable IP tables logging support by checking this out:

IP: Netfilter Configuration  --->
 <*> IP tables support (required for filtering/masq/NAT)
    <*> LOG target support

But this option is missing from kernel 3.9.0, and seems to have been replaced by CONFIG_NETFILTER_NETLINK_LOG.

1 Answer 1

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The symbol that enables the LOG target has changed to NETFILTER_XT_TARGET_LOG. Its location has also moved to:

Networking support
 Networking options
  Network packet filtering framework (Netfilter)
   Core Netfilter Configuration
    Netfilter Xtables support (required for ip_tables)
     LOG target support

If we could just track how kernel symbols change over time, that would be great.

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