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authorinitramfs <initramfs@initramfs.io>2022-09-24 11:01:50 +0800
committerinitramfs <initramfs@initramfs.io>2022-09-25 04:00:40 +0800
commit6205398554d80d117838085f03a218466264862c (patch)
treeeebb6e90c0d9bea6278a2d02d8b6b5cdc232d10b
parent4fdd85cdfc2c9e661be2da3a34d0a2f3c7e43fd5 (diff)
downloadvyos-documentation-6205398554d80d117838085f03a218466264862c.tar.gz
vyos-documentation-6205398554d80d117838085f03a218466264862c.zip
firewall: T4709: update documentation for TCP MSS clamping
-rw-r--r--docs/configuration/firewall/index.rst14
1 files changed, 10 insertions, 4 deletions
diff --git a/docs/configuration/firewall/index.rst b/docs/configuration/firewall/index.rst
index 8a90e7fa..c2e584a3 100644
--- a/docs/configuration/firewall/index.rst
+++ b/docs/configuration/firewall/index.rst
@@ -812,10 +812,13 @@ IPv4
.. cfgcmd:: set firewall options interface <interface> adjust-mss
- <number-of-bytes>
+ <mss | clamp-mss-to-pmtu>
Use this command to set the maximum segment size for IPv4 transit
- packets on a specific interface (500-1460 bytes).
+ packets on a specific interface (536-65535 bytes).
+
+ Instead of a numerical MSS value `clamp-mss-to-pmtu` can be used to
+ automatically set the proper value.
Example
-------
@@ -835,10 +838,13 @@ IPv6
====
.. cfgcmd:: set firewall options interface <interface> adjust-mss6
- <number-of-bytes>
+ <mss | clamp-mss-to-pmtu>
Use this command to set the maximum segment size for IPv6 transit
- packets on a specific interface (1280-1492 bytes).
+ packets on a specific interface (1220-65535 bytes).
+
+ Instead of a numerical MSS value `clamp-mss-to-pmtu` can be used to
+ automatically set the proper value.
.. _firewall:ipv6_example: