networking - Telnet session starts with 21 bytes of crap -


within small embedded application i'm providing telnet server sending simple commands it. testing connect using putty. found there 21 bytes of data sent server on connection. so...what be? initialisation sequence?

from understanding telnet plain connection should not have such data...

thanks!

ok, got it: when selecting "active auto negotiation mode" in putty sends these data additional information of whatever...so 1 has tod rop characters ascii code larger 127 ignore these data.


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