I tried adding the specified line to typemap and then 
make clean
perl Makefile.PL
make
make install
perl server.pl

[download]
But got the same error. I will email the author the contents of my original post. Thanks!

In reply to Re^2: Net::Packet::Dump can't bless non-reference as 'IO::File' by jeffguy
in thread Net::Packet::Dump can't bless non-reference as 'IO::File' by jeffguy

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