Hi monks,

I would like to set IPOPT_LSRR with one hop (code sample with one hop) : 


my $_hop = inet_aton $hop;
my $_end = inet_aton $end;
    
my $_header = pack "C4", &NOP, &LSRR, $length, $ptr;
my $ipOpt = $_header . $_hop . $_end;

setsockopt S, IPPROTO_IP, IP_OPTIONS, $ipOpt;

[download]

This is not working properly. The connection is successfully established, but cannot see the IP options with wireshark (and it is not performing LSRR).

Do you have any suggestion, please?

Since inet_aton return a "32 bits" in_addr C like opaque string (or at least, this is what I am supposing), pack is not being used, instead hops are just appended, so, how could I invoke getsockopt and, using unpack, print out the different hops back?

Thanks in advance and kind regards,

Ernesto

In reply to loose source and route record by Ernesto81

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