From 3c8799b8a45def567705bfd07b8745e99d5f2dd9 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Mon, 29 Nov 2010 12:07:12 +0100 Subject: ping: set not only IP_TTL, but also IP_MULTICAST_TTL Signed-off-by: Denys Vlasenko --- networking/ping.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/networking/ping.c b/networking/ping.c index 8571d179b..7f74c26fa 100644 --- a/networking/ping.c +++ b/networking/ping.c @@ -675,9 +675,11 @@ static void ping4(len_and_sockaddr *lsa) sockopt = (datalen * 2) + 7 * 1024; /* giving it a bit of extra room */ setsockopt(pingsock, SOL_SOCKET, SO_RCVBUF, &sockopt, sizeof(sockopt)); - if (opt_ttl != 0) - //setsockopt(pingsock, IPPROTO_IP, IP_MULTICAST_TTL, &opt_ttl, sizeof(opt_ttl)); + if (opt_ttl != 0) { setsockopt(pingsock, IPPROTO_IP, IP_TTL, &opt_ttl, sizeof(opt_ttl)); + /* above doesnt affect packets sent to bcast IP, so... */ + setsockopt(pingsock, IPPROTO_IP, IP_MULTICAST_TTL, &opt_ttl, sizeof(opt_ttl)); + } signal(SIGINT, print_stats_and_exit); -- cgit v1.2.3