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
UTC+1 (CET)
RED HAT | TRIED. TESTED. TRUSTED.
Attachment:
signature.asc
Description: OpenPGP digital signature