return-icmp() relative question to ipf rule.

[jhell]

I have a rule I used in ipfilter probably around 2 or so years ago and I 
am now getting around to trying to implement in it my pf rules. So far any 
results I have achieved have failed with no response back from the server 
and get dropped.

The rule in ipf syntax:
block return-icmp-as-dest(13) in log first quick proto icmp all icmp-type 
8

The above ipf rule returns a result of "Destination Administratively 
Prohibited" when ping'd

The following pf syntax:
block return-icmp(3,13) in quick inet proto icmp from any to any icmp-type 
8 code 0

The above pf rule returns a result of "Nothing ........" when ping'd

Just to be sure I wasn't mucking up the chain of rules I added this as the 
only rule to test it out and have achieved the same result multiple times 
on a test machine.

Can anyone shed some light on the syntax and help me out with getting this 
rule to make the system respond to a echo request with admin-prohib as 
the destination system ?

Thanks

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