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| author | Viacheslav Hletenko <v.gletenko@vyos.io> | 2022-08-01 13:19:53 +0000 |
|---|---|---|
| committer | Viacheslav Hletenko <v.gletenko@vyos.io> | 2022-08-01 14:22:42 +0000 |
| commit | 29b0ee30bf2622a40ca3d17e3f6b9e94e5b62072 (patch) | |
| tree | 12064fc7950be4c1030e1666b3201425d8a976e8 | |
| parent | ab84f1f3757bb82c3ddf95143c014cdb3d997977 (diff) | |
| download | vyos-1x-29b0ee30bf2622a40ca3d17e3f6b9e94e5b62072.tar.gz vyos-1x-29b0ee30bf2622a40ca3d17e3f6b9e94e5b62072.zip | |
mtu: T4572: Add DHCP-option MTU to get values from DHCP-server
Ability to get MTU from DHCP-server and don't touch it per
any interface change if interface 'dhcp-options mtu' is
configured
| -rw-r--r-- | interface-definitions/include/interface/dhcp-options.xml.i | 6 | ||||
| -rw-r--r-- | python/vyos/ifconfig/interface.py | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/interface-definitions/include/interface/dhcp-options.xml.i b/interface-definitions/include/interface/dhcp-options.xml.i index 914b60503..2ed5fd403 100644 --- a/interface-definitions/include/interface/dhcp-options.xml.i +++ b/interface-definitions/include/interface/dhcp-options.xml.i @@ -14,6 +14,12 @@ <help>Override system host-name sent to DHCP server</help> </properties> </leafNode> + <leafNode name="mtu"> + <properties> + <help>Use MTU value from DHCP server - ignore interface setting</help> + <valueless/> + </properties> + </leafNode> <leafNode name="vendor-class-id"> <properties> <help>Identify the vendor client type to the DHCP server</help> diff --git a/python/vyos/ifconfig/interface.py b/python/vyos/ifconfig/interface.py index 555494f80..c50ead89f 100644 --- a/python/vyos/ifconfig/interface.py +++ b/python/vyos/ifconfig/interface.py @@ -1535,7 +1535,7 @@ class Interface(Control): # before mangling any IPv6 option. If MTU is less then 1280 IPv6 will be # automatically disabled by the kernel. Also MTU must be increased before # configuring any IPv6 address on the interface. - if 'mtu' in config: + if 'mtu' in config and dict_search('dhcp_options.mtu', config) == None: self.set_mtu(config.get('mtu')) # Configure MSS value for IPv6 TCP connections |