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   systemd.netdev    ( 5 )

конфигурация виртуального сетевого устройства (Virtual Network Device configuration)
  Name  |  Synopsis  |  Description  |  Supported netdev kinds  |  Match section options  |  [netdev] section options  |  [bridge] section options  |  [vlan] section options  |  [macvlan] section options  |  [macvtap] section options  |  [ipvlan] section options  |  [ipvtap] section options  |    [vxlan] section options    |  [geneve] section options  |  [bareudp] section options  |  [l2tp] section options  |  [l2tpsession] section options  |  [macsec] section options  |  [macsecreceivechannel] section options  |  [macsectransmitassociation] section options  |  [macsecreceiveassociation] section options  |  [tunnel] section options  |  [foooverudp] section options  |  [peer] section options  |  [vxcan] section options  |  [tun] section options  |  [tap] section options  |  [wireguard] section options  |  [wireguardpeer] section options  |  [bond] section options  |  [xfrm] section options  |  [vrf] section options  |  [batmanadvanced] section options  |  Examples  |  See also  |  Note  |

[VXLAN] SECTION OPTIONS

The [VXLAN] section only applies for netdevs of kind "vxlan", and accepts the following keys:

VNI= The VXLAN Network Identifier (or VXLAN Segment ID). Takes a number in the range 1...16777215.

Remote= Configures destination IP address.

Local= Configures local IP address.

Group= Configures VXLAN multicast group IP address. All members of a VXLAN must use the same multicast group address.

TOS= The Type Of Service byte value for a vxlan interface.

TTL= A fixed Time To Live N on Virtual eXtensible Local Area Network packets. Takes "inherit" or a number in the range 0...255. 0 is a special value meaning inherit the inner protocol's TTL value. "inherit" means that it will inherit the outer protocol's TTL value.

MacLearning= Takes a boolean. When true, enables dynamic MAC learning to discover remote MAC addresses.

FDBAgeingSec= The lifetime of Forwarding Database entry learnt by the kernel, in seconds.

MaximumFDBEntries= Configures maximum number of FDB entries.

ReduceARPProxy= Takes a boolean. When true, bridge-connected VXLAN tunnel endpoint answers ARP requests from the local bridge on behalf of remote Distributed Overlay Virtual Ethernet (DVOE)[6] clients. Defaults to false.

L2MissNotification= Takes a boolean. When true, enables netlink LLADDR miss notifications.

L3MissNotification= Takes a boolean. When true, enables netlink IP address miss notifications.

RouteShortCircuit= Takes a boolean. When true, route short circuiting is turned on.

UDPChecksum= Takes a boolean. When true, transmitting UDP checksums when doing VXLAN/IPv4 is turned on.

UDP6ZeroChecksumTx= Takes a boolean. When true, sending zero checksums in VXLAN/IPv6 is turned on.

UDP6ZeroChecksumRx= Takes a boolean. When true, receiving zero checksums in VXLAN/IPv6 is turned on.

RemoteChecksumTx= Takes a boolean. When true, remote transmit checksum offload of VXLAN is turned on.

RemoteChecksumRx= Takes a boolean. When true, remote receive checksum offload in VXLAN is turned on.

GroupPolicyExtension= Takes a boolean. When true, it enables Group Policy VXLAN extension security label mechanism across network peers based on VXLAN. For details about the Group Policy VXLAN, see the VXLAN Group Policy[7] document. Defaults to false.

GenericProtocolExtension= Takes a boolean. When true, Generic Protocol Extension extends the existing VXLAN protocol to provide protocol typing, OAM, and versioning capabilities. For details about the VXLAN GPE Header, see the Generic Protocol Extension for VXLAN[8] document. If destination port is not specified and Generic Protocol Extension is set then default port of 4790 is used. Defaults to false.

DestinationPort= Configures the default destination UDP port. If the destination port is not specified then Linux kernel default will be used. Set to 4789 to get the IANA assigned value.

PortRange= Configures the source port range for the VXLAN. The kernel assigns the source UDP port based on the flow to help the receiver to do load balancing. When this option is not set, the normal range of local UDP ports is used.

FlowLabel= Specifies the flow label to use in outgoing packets. The valid range is 0-1048575.

IPDoNotFragment= Allows setting the IPv4 Do not Fragment (DF) bit in outgoing packets, or to inherit its value from the IPv4 inner header. Takes a boolean value, or "inherit". Set to "inherit" if the encapsulated protocol is IPv6. When unset, the kernel's default will be used.