tcp - tcpreplay: -T option -


in tcpreplay there useful feature which, according official faq's, called parameter -t :

the packet length (in case 8892 bytes) greater maximum transmition unit (mtu) on outgoing interface. tcpreplay must skip packet. alternatively, can specify -t option , tcpreplay truncate packet mtu size, fix checksums , send it.

unfortunately, -t appears different in man page:

-t string, --timer=string               select packet timing mode: select, ioport, rdtsc, gtod, nano, abstime.  option may appear 1 times.  default string option is:                    gtod               allows select packet timing method use:               nano - use nanosleep() api               select - use select() api               ioport - write i386 io port 0x80               rdtsc - use x86/x86_64/ppc rdtsc               gtod [default] - use gettimeofday() loop               abstime - use os x's absolutetime api

has option been removed in more recent versions of tcpreplay?

yes, separated tcprewrite (which transforms capture files) , options merged in command tcpreplay-edit.

it looks options may need equivalent -t option -c, , --mtu-trunc (+ --mtu=n if aren't dealing standard 1500.) may instead need -f if problem @ collection time.

here fuller description faq

it written tcprewrite, should work same way tcpreplay-edit


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