C.12. Sending Gratuitous ARPs
/********************************************************* NAME : send_gratuitous_arp *********************************************************/ static int send_gratuitous_arp( vrrp_rt *vsrv, int addr, int vAddrF ) { struct m_arphdr { unsigned short int ar_hrd; /* Format of hardware address. */ unsigned short int ar_pro; /* Format of protocol address. */ unsigned char ar_hln; /* Length of hardware address. */ unsigned char ar_pln; /* Length of protocol address. */ unsigned short int ar_op; /* ARP opcode (command). */ /* Ethernet looks like this : This bit is variable sized however. */ unsigned char __ar_sha[ETH_ALEN]; /* Sender hardware address. */ unsigned char __ar_sip[4]; /* Sender IP address. */ unsigned char ...Get VRRP: Increasing Reliability and Failover with the Virtual Router Redundance Protocol now with the O’Reilly learning platform.
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