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-rw-r--r--slirp/bootp.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/slirp/bootp.c b/slirp/bootp.c
index 3924c10725..56caf707eb 100644
--- a/slirp/bootp.c
+++ b/slirp/bootp.c
@@ -136,6 +136,9 @@ static void bootp_reply(struct bootp_t *bp)
dhcp_decode(bp->bp_vend, DHCP_OPT_LEN, &dhcp_msg_type);
dprintf("bootp packet op=%d msgtype=%d\n", bp->bp_op, dhcp_msg_type);
+ if (dhcp_msg_type == 0)
+ dhcp_msg_type = DHCPREQUEST; /* Force reply for old BOOTP clients */
+
if (dhcp_msg_type != DHCPDISCOVER &&
dhcp_msg_type != DHCPREQUEST)
return;