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If a packet came in as link-level broadcast or link-level multicast, don't

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attempt to fast-forward it out.
This commit is contained in:
sommerfeld 1999-10-17 23:38:45 +00:00
parent c2accd9f9c
commit f3182098a7
1 changed files with 9 additions and 1 deletions
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10
sys/netinet/ip_flow.c
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@ -1,4 +1,4 @@
/* $NetBSD: ip_flow.c,v 1.13 1999/03/26 08:51:35 proff Exp $ */
/* $NetBSD: ip_flow.c,v 1.14 1999/10/17 23:38:45 sommerfeld Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -154,6 +154,14 @@ ipflow_fastforward(
*/
if (!ipforwarding || ipflow_inuse == 0 || m->m_len < sizeof(struct ip))
return 0;
/*
* Was packet recieved as a link-level multicast or broadcast?
* If so, don't try to fast forward..
*/
if ((m->m_flags & (M_BCAST|M_MCAST)) != 0)
return 0;
/*
* IP header with no option and valid version and length
*/