IPchains and dns

In my /var/log/messages when a packet is rejected, the source IP is shown in numerical format. How can I get the log to have the resolved host name instead?
im using 2.2.14
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unikenAsked:
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philiph_elvisCommented:
Easy.  You can't.  Also, you proably don't want to, as dns lookups are expensive.
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