GitHub user joolli edited a comment on the discussion: Host based routing -
EVPN-VXLAN to the host - Single VXLAN Device (SVD)
Here is something for ifupdown or ifupdown-ng... I haven't tried it so you
might need to adjust it a little bit
```
auto lo
iface lo inet loopback
post-up ip addr add <VTEP IP>/32 dev $IFACE
auto br0
iface br0 inet manual
pre-up ip link set dev $IFACE addrgenmode none
pre-up ip link set dev $IFACE type bridge vlan_filtering 1
pre-up ip link set dev $IFACE type bridge mcast_snooping 0
pre-up ip link set dev $IFACE type bridge vlan_default_pvid 1
pre-up ip link set dev $IFACE mtu 9000
up sysctl -w net.ipv4.conf.all.forwarding=1
# guest nets
post-up ip link add ethgsta type veth peer name ethgstb
post-up ip link set dev ethgsta addrgenmode none
post-up ip link set dev ethgstb addrgenmode none
post-up ip link set dev ethgsta up
post-up ip link set dev ethgstb up
post-up ip link set dev ethgsta master $IFACE
auto vxlan0
iface vxlan0 inet manual
pre-up ip link add dev $IFACE type vxlan external
pre-up ip link set $IFACE type vxlan local <loopback address> dstport
4789 id 0 nolearning
pre-up ip link set $IFACE type bridge_slave neigh_suppress on learning
off
pre-up ip link set dev $IFACE master br0
pre-up ip link set dev $IFACE mtu 9000
pre-up ip link set dev $IFACE addrgenmode none
```
GitHub link:
https://github.com/apache/cloudstack/discussions/10786#discussioncomment-13349522
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