I am using module Net:RawIp
Net-RawIp version is: Net-RawIp-0.25. Linux machine OS is: [root@auto-12 tools]# uname -a Linux auto-12 2.6.18-92.el5 #1 SMP Tue Jun 10 18:49:47 EDT 2008 i686 i +686 i386 GNU/Linux The command is as follows: [root@auto-12 examples]# ./land --src=50.254.1.12 --srcport=1032 --src +mac=00:1B:21:01:F1:8D --dest=50.100.1.3 --destport=1033 --type=tcp -- +number=3000 --srceth=eth0 constructing tcp packets (tap) Can't get interface IP address at /usr/lib/perl5/site_perl/5.8.8 +/i386-linux-thread-multi/Net/RawIP.pm line 223. The perl script part is: $packet->ethnew(eth0); <=================================complain if ($arg_src_mac) { $packet->ethset(source=>$arg_src_mac); } if ($arg_dest_mac) { $packet->ethset(dest=>$arg_dest_mac); } Any idea why the tap function of eth.c is not working? Thanks

In reply to (tap) Can't get interface ip address by joylucks

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