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| author | Hannes Frederic Sowa <hannes@stressinduktion.org> | 2013-12-14 04:42:13 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-12-17 15:20:15 -0500 |
| commit | 188b04d580ab7acf11eb77cb564692050c10edfe (patch) | |
| tree | cc4a538a4d553bb5b898364ae7c85fcb50427dc8 /Documentation/networking | |
| parent | 7089fdd81493986a39c8fa5563066c8e7e8e7cad (diff) | |
ipv4: improve documentation of ip_no_pmtu_disc
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/ip-sysctl.txt | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 3c12d9a7ed0..8a984e994e6 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -16,8 +16,12 @@ ip_default_ttl - INTEGER Default: 64 (as recommended by RFC1700) ip_no_pmtu_disc - BOOLEAN - Disable Path MTU Discovery. - default FALSE + Disable Path MTU Discovery. If enabled and a + fragmentation-required ICMP is received, the PMTU to this + destination will be set to min_pmtu (see below). You will need + to raise min_pmtu to the smallest interface MTU on your system + manually if you want to avoid locally generated fragments. + Default: FALSE min_pmtu - INTEGER default 552 - minimum discovered Path MTU |