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authorYuxiang Zhu <vfreex@gmail.com>2022-11-21 01:02:54 +0800
committerYuxiang Zhu <vfreex@gmail.com>2022-11-21 15:49:28 +0800
commit407d469be919f1841fb3bac49947c758c4a24b67 (patch)
tree0d91138f4e594fd45830776c2ce089c373838419 /interface-definitions
parent6d90375db4dd0c9beb2815e8ceae2d6214465f99 (diff)
downloadvyos-1x-407d469be919f1841fb3bac49947c758c4a24b67.tar.gz
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T4832: dhcp: Add dhcp option to signal IPv6-only support
Clients supporting this DHCP option (DHCP option 108, per RFC 8925) will disable its IPv4 network stack for configured number of seconds and operate in IPv6-only mode. Example clients supporting this option including iOS 15+ and macOS 12.0.1+.
Diffstat (limited to 'interface-definitions')
-rw-r--r--interface-definitions/dhcp-server.xml.in13
1 files changed, 13 insertions, 0 deletions
diff --git a/interface-definitions/dhcp-server.xml.in b/interface-definitions/dhcp-server.xml.in
index 8c10ccf99..c1f2fe2fd 100644
--- a/interface-definitions/dhcp-server.xml.in
+++ b/interface-definitions/dhcp-server.xml.in
@@ -357,6 +357,19 @@
</leafNode>
</children>
</tagNode >
+ <leafNode name="ipv6-only-preferred">
+ <properties>
+ <help>Disable IPv4 on IPv6 only hosts (RFC 8925)</help>
+ <valueHelp>
+ <format>u32</format>
+ <description>Seconds</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 0-4294967295"/>
+ </constraint>
+ <constraintErrorMessage>Seconds must be between 0 and 4294967295 (49 days)</constraintErrorMessage>
+ </properties>
+ </leafNode>
<leafNode name="subnet-parameters">
<properties>
<help>Additional subnet parameters for DHCP server. You must