September 2002
Intermediate to advanced
560 pages
13h 16m
English
book
VRRP: Increasing Reliability and Failover with the Virtual Router Redundance Protocol
by Ayikudy Srikanth, Adnan Adam Onart
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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 ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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