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
Content preview from VRRP: Increasing Reliability and Failover with the Virtual Router Redundance ProtocolBecome 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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C.7. Sending the VRRP Advertisement
/********************************************************* NAME : vrrp_send_pkt *********************************************************/ static int vrrp_send_pkt( vrrp_rt *vsrv, char *buffer, int buflen ) { struct sockaddr from; int len; int fd = socket(PF_PACKET, SOCK_PACKET, 0x300); /* 0x300 is magic */ if( fd < 0 ){ perror( "socket" ); return -1; } /* build the address */ memset( &from, 0 , sizeof(from)); strcpy( from.sa_data, vsrv->vif.ifname ); /* send the data */ len = sendto( fd, buffer, buflen, 0, &from, sizeof(from) ); close( fd ); return len; } /********************************************************* NAME : vrrp_send_adv *********************************************************/ static int vrrp_send_adv( ...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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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.