Hi!
ppp[0:2]=0xc021 is a capture filter, not dispaly filter.
I have solved this problem, because in my case, ppp is encapsulated in
PPPoE, not directly in Ether, so ppp[0:2]=0xc021 can not capture PPP LCP
packets.
Thanks a lot!
---
Hello everyone!
I'd like to write a capture filter, to capture only PPP LCP packets, I
use ppp[0:2] = 0xc021, the first two bytes "0xc021" of PPP header means
Link Control Protocol(LCP), this capture filter should work, but it
captures nothing, why?
Any suggestion is welcome.
Best Regards
