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Accept packets with TTL=1 

Packets with TTL=1 may be directed to local network (DHCP/DNS servers for example), so don't discard them
This is required by old versions of NetBSD which send DHCP DISCOVER packets with TTL=1

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This commit is contained in:
Hervé Poussineau 2010-09-13 23:01:30 +02:00 committed by Edgar E. Iglesias
parent abdfd9500e
commit 0d491754d0
1 changed files with 1 additions and 1 deletions
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2
slirp/ip_input.c
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@ -144,7 +144,7 @@ ip_input(struct mbuf *m)
m_adj(m, ip->ip_len - m->m_len); m_adj(m, ip->ip_len - m->m_len);
/* check ip_ttl for a correct ICMP reply */ /* check ip_ttl for a correct ICMP reply */
if(ip->ip_ttl==0 || ip->ip_ttl==1) { if(ip->ip_ttl==0) {
icmp_error(m, ICMP_TIMXCEED,ICMP_TIMXCEED_INTRANS, 0,"ttl"); icmp_error(m, ICMP_TIMXCEED,ICMP_TIMXCEED_INTRANS, 0,"ttl");
goto bad; goto bad;
} }