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author | Paolo Abeni <pabeni@redhat.com> | 2024-02-15 17:34:42 +0300 |
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committer | Paolo Abeni <pabeni@redhat.com> | 2024-02-15 17:34:43 +0300 |
commit | dfe7f12788f5428d8bc16e86eedcfa889a3e3b29 (patch) | |
tree | 93823ccd57a80b4b2c2d570ef3662f291731261d /Documentation/networking | |
parent | ea578703b03d5d651b091c39f717dc829155b520 (diff) | |
parent | f4bcbf360ac8dc424dc4d2b384b528e69b6f34d9 (diff) | |
download | linux-dfe7f12788f5428d8bc16e86eedcfa889a3e3b29.tar.xz |
Merge branch 'net-ipv6-addrconf-ensure-that-temporary-addresses-preferred-lifetimes-are-long-enough'
Alex Henrie says:
====================
net: ipv6/addrconf: ensure that temporary addresses' preferred lifetimes are long enough
v2 corrects and updates the documentation for these features.
Changes from v1:
- Update the typical minimum lifetime stated in the documentation, and
make it a range to emphasize the variability
- Fix spelling of "determine" in the documentation
- Mention RFC 8981's requirements in the documentation
- Arrange variables in "reverse Christmas tree"
- Update documentation of what happens if temp_prefered_lft is less
than the minimum required lifetime
Thanks to David, Paolo, and Dan for your feedback.
====================
Link: https://lore.kernel.org/r/20240214062711.608363-1-alexhenrie24@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'Documentation/networking')
-rw-r--r-- | Documentation/networking/ip-sysctl.rst | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst index 7afff42612e9..bd50df6a5a42 100644 --- a/Documentation/networking/ip-sysctl.rst +++ b/Documentation/networking/ip-sysctl.rst @@ -2503,7 +2503,7 @@ use_tempaddr - INTEGER temp_valid_lft - INTEGER valid lifetime (in seconds) for temporary addresses. If less than the - minimum required lifetime (typically 5 seconds), temporary addresses + minimum required lifetime (typically 5-7 seconds), temporary addresses will not be created. Default: 172800 (2 days) @@ -2511,7 +2511,7 @@ temp_valid_lft - INTEGER temp_prefered_lft - INTEGER Preferred lifetime (in seconds) for temporary addresses. If temp_prefered_lft is less than the minimum required lifetime (typically - 5 seconds), temporary addresses will not be created. If + 5-7 seconds), the preferred lifetime is the minimum required. If temp_prefered_lft is greater than temp_valid_lft, the preferred lifetime is temp_valid_lft. @@ -2535,6 +2535,16 @@ max_desync_factor - INTEGER Default: 600 +regen_min_advance - INTEGER + How far in advance (in seconds), at minimum, to create a new temporary + address before the current one is deprecated. This value is added to + the amount of time that may be required for duplicate address detection + to determine when to create a new address. Linux permits setting this + value to less than the default of 2 seconds, but a value less than 2 + does not conform to RFC 8981. + + Default: 2 + regen_max_retry - INTEGER Number of attempts before give up attempting to generate valid temporary addresses. |