I compiled your code with a C compiler (after removing C++ syntax) and it is
working fine:
bastard:~ # ./test
Length: -1
Length: 20
Length: 8
Length: 8
Length: 4
Maybe the difference is that I have only TX from PBX connected to HFC-E1 RX.
And when using program that I sent to you I get no packets, but then
using tcpdump on visdnX interface i get packets ok:
[EMAIL PROTECTED]:/home/hfc# tcpdump -i visdn1
tcpdump: WARNING: arptype 8445 not supported by libpcap - falling back
to cooked socket
tcpdump: WARNING: visdn1: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on visdn1, link-type LINUX_SLL (Linux cooked), capture size 96 bytes
12:26:02.932394 In ethertype Unknown (0x0030), length 24:
0x0000: 0200 0300 0201 013d .......=
12:26:12.945514 In ethertype Unknown (0x0030), length 24:
0x0000: 0200 0000 0201 013d .......=
12:26:22.958654 In ethertype Unknown (0x0030), length 24:
0x0000: 0200 0000 0201 013d .......=
12:26:32.971803 In ethertype Unknown (0x0030), length 24:
0x0000: 023e 0100 0201 013d .>.....=
12:26:42.985810 In ethertype Unknown (0x0030), length 24:
0x0000: 023e 0100 0201 013d .>.....=
12:26:52.998200 In ethertype Unknown (0x0030), length 24:
0x0000: 0200 0000 0201 013d .......=
Regards,
Tomas Vilda
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