Hello, I'm investigating why Wireshark is dropping packets when capturing over loopback and I think the man page is wrong with the default snaplen. It says that the default size is 65535, but if I'm not mistaken the default size is set in capture_opts.c which leads to WTAP_MAX_PACKET_SIZE in wiretap/wtap.h and the value is 262144.
$ grep snaplen capture_opts.c
capture_opts->default_options.has_snaplen = FALSE;
capture_opts->default_options.snaplen = WTAP_MAX_PACKET_SIZE;
$ grep WTAP_MAX_PACKET_SIZE wiretap/wtap.h
#define WTAP_MAX_PACKET_SIZE 262144
When running wireshark it indeed seems like the default value is 262144
(it drops the same amount of packets, as it does without specifying any
snaplen). Should I fill in a bug report?
Regards,
--
Martin Sehnoutka | Associate Software Engineer
PGP: 5FD64AF5
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RED HAT | TRIED. TESTED. TRUSTED.
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