Re: ipnat - local redirection - ANSWER

Greetings,

A friend, more observant than I, noticed the destination address should not
have /32. The following works fine:

rdr dmfe0 161.117.169.92/32 port 4888 -> 161.117.169.92 port 4889

Regards,

Dave


Dave+Seddon writes:

> Greetings,
>
> I'd like to do a local redirection, to redirect from TCP port 4888 to 4889
> (This is for Oracle Management Agent 10g).
>
> Here's what I've tried:
> --------------------------------
> # cat /etc/ipnat.rules
> rdr dmfe0 161.117.169.92/32 port 4888 -> 127.0.0.1 port 4889
>
> # ipnat -CF -f /etc/ipnat.rules
> 0 entries flushed from NAT table
> 0 entries flushed from NAT list
> localhost as destination not supported
> 4: syntax error in "rdr"
> /etc/ipnat.rules: parse error (-1), quitting
> --------------------------------
>
> I also tried using the non-lo interface address, even though the how-to
> says the packets must be redirect to a different interface than the one
> they come in on (ref. http://www.unixcircle.com/ipf/ipf-howto.html).
> --------------------------------
> # cat /etc/ipnat.rules
> rdr dmfe0 161.117.169.92/32 port 4888 -> 161.117.169.92/32 port 4889
>
> # ipnat -CF -f /etc/ipnat.rules
> 0 entries flushed from NAT table
> 0 entries flushed from NAT list
> 5: can't resolve hostname: 161.117.169.92/32
> 5: syntax error in "rdr"
> /etc/ipnat.rules: parse error (-1), quitting
> --------------------------------
>
> Any ideas?
>
> Regards,
>
> Dave Seddon
>