taglinefilesource code
NET16542drivers/net/slip.creturn(NET16(ETH_P_AX25));
NET16544drivers/net/slip.creturn(NET16(ETH_P_IP));
NET16556drivers/net/slip.cif((sl->mode&SL_MODE_AX25) && type!=NET16(ETH_P_AX25))
NET16479net/inet/arp.cif (arp->ar_hln != dev->addr_len || dev->type != NET16(arp->ar_hrd)) 
NET16487net/inet/arp.cif (((arp->ar_pro != NET16(0x00CC) && dev->type==3) || (arp->ar_pro != NET16(ETH_P_IP) && dev->type!=3) ) || arp->ar_pln != 4) 
NET16489net/inet/arp.cif (arp->ar_op != NET16(ARPOP_REQUEST))
NET16534net/inet/arp.cif (arp->ar_op != NET16(ARPOP_REQUEST)) {
NET1668net/inet/dev.cNET16(ETH_P_802_3),
NET1676net/inet/dev.cNET16(ETH_P_IPX),
NET1688net/inet/dev.cNET16(ETH_P_AX25),
NET16102net/inet/dev.cNET16(ETH_P_ARP),
NET16119net/inet/dev.cNET16(ETH_P_IP),