We have no explicit signal when a UDP stream has terminated, peers just
stop sending.
For suspected stream connections a timeout of two minutes is sane to keep
NAT mapping alive a while longer.
It matches tcp conntracks 'timewait' default timeout value.
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
---
Documentation/networking/nf_conntrack-sysctl.txt | 2 +-
net/netfilter/nf_conntrack_proto_udp.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/networking/nf_conntrack-sysctl.txt b/Documentation/networking/nf_conntrack-sysctl.txt
index 1669dc2419fd..e69b2e6a4a29 100644
--- a/Documentation/networking/nf_conntrack-sysctl.txt
+++ b/Documentation/networking/nf_conntrack-sysctl.txt
@@ -157,7 +157,7 @@ nf_conntrack_udp_timeout - INTEGER (seconds)
default 30
nf_conntrack_udp_timeout_stream - INTEGER (seconds)
- default 180
+ default 120
This extended timeout will be used in case there is an UDP stream
detected.
diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
index c879d8d78cfd..d15fe5424a6e 100644
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -29,7 +29,7 @@
static const unsigned int udp_timeouts[UDP_CT_MAX] = {
[UDP_CT_UNREPLIED] = 30*HZ,
- [UDP_CT_REPLIED] = 180*HZ,
+ [UDP_CT_REPLIED] = 120*HZ,
};
static unsigned int *udp_get_timeouts(struct net *net)
--
2.19.2
