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| author | Florian Westphal <fw@strlen.de> | 2018-12-18 00:05:29 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-12-21 00:48:46 +0100 |
| commit | 294304e4c522d797b7ea8200ab74354843fa68e9 (patch) | |
| tree | 14c5ed235dc6980f3b892f6717f0243564bf4b36 | |
| parent | d535c8a69c1924e70186d80be0a9cecaf475f166 (diff) | |
| download | linux-294304e4c522d797b7ea8200ab74354843fa68e9.tar.gz linux-294304e4c522d797b7ea8200ab74354843fa68e9.tar.bz2 linux-294304e4c522d797b7ea8200ab74354843fa68e9.zip | |
netfilter: conntrack: udp: set stream timeout to 2 minutes
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@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| -rw-r--r-- | Documentation/networking/nf_conntrack-sysctl.txt | 2 | ||||
| -rw-r--r-- | 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 9f2e05adba69..b4f5d5e82031 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) |