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networkd: Assign VXLAN destination port to when GPE is set
When VXLAN destination port is unset and GPE is set then assign 4790 to destination port. Kernel does the same as well as iproute. IANA VXLAN-GPE port is 4790
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@ -661,7 +661,8 @@
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<para>Takes a boolean. When true, Generic Protocol Extension extends the existing VXLAN protocol
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to provide protocol typing, OAM, and versioning capabilities. For details about the VXLAN GPE
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Header, see the <ulink url="https://tools.ietf.org/html/draft-ietf-nvo3-vxlan-gpe-07">
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Generic Protocol Extension for VXLAN </ulink> document. Defaults to false.</para>
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Generic Protocol Extension for VXLAN </ulink> document. If destination port is not specified and
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Generic Protocol Extension is set then default port of 4790 is used. Defaults to false.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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@ -289,6 +289,9 @@ static int netdev_vxlan_verify(NetDev *netdev, const char *filename) {
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"%s: VXLAN TTL must be <= 255. Ignoring.",
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filename);
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if (!v->dest_port && v->generic_protocol_extension)
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v->dest_port = 4790;
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return 0;
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}
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