diff options
-rw-r--r-- | lib/ratp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/ratp.c b/lib/ratp.c index 5c52d3b5f6..46a2b645c9 100644 --- a/lib/ratp.c +++ b/lib/ratp.c @@ -359,7 +359,7 @@ static bool ratp_an_expected(struct ratp_internal *ri, struct ratp_header *hdr) static bool ratp_sn_expected(struct ratp_internal *ri, struct ratp_header *hdr) { - return ratp_sn(hdr) != ri->sn_received; + return ratp_sn(hdr) == (ri->sn_received + 1) % 2; } static int ratp_send_ack(struct ratp_internal *ri, struct ratp_header *hdr) |