kernel/include/linux/if_arp.h
.. .. @@ -52,6 +52,10 @@ 52 52 case ARPHRD_NONE: 53 53 case ARPHRD_RAWIP: 54 54 case ARPHRD_PIMREG: 55 + /* PPP adds its l2 header automatically in ppp_start_xmit().56 + * This makes it look like an l3 device to __bpf_redirect() and tcf_mirred_init().57 + */58 + case ARPHRD_PPP:55 59 return false; 56 60 default: 57 61 return true;