vxlan简单多播组网

// host1 10.102.126.141

ip link add vxlan0 type vxlan id 42 dstport 4789 local 10.102.126.141 group 239.1.1.1 dev eth0

ip link add br0 type bridge
ip link set vxlan0 master br0
ip link set vxlan0 up
ip link set br0 up

ip link add veth0 type veth peer name veth1 mtu 1400
ip link set veth0 mtu 1400
ip link set dev veth0 master br0
ip link set dev veth0 up

ip netns add ns0
ip link set dev veth1 netns ns0
ip netns exec ns0 ip link set lo up
ip netns exec ns0 ip link set veth1 name eth0
ip netns exec ns0 ip addr add 10.20.1.2/24 dev eth0
ip netns exec ns0 ip link set eth0 up

//host2 10.102.126.146

ip link add vxlan0 type vxlan id 42 dstport 4789 local 10.102.126.146 group 239.1.1.1 dev eth0

ip link add br0 type bridge
ip link set vxlan0 master br0
ip link set vxlan0 up
ip link set br0 up

ip link add veth0 type veth peer name veth1 mtu 1400
ip link set veth0 mtu 1400
ip link set dev veth0 master br0
ip link set dev veth0 up

ip netns add ns0
ip link set dev veth1 netns ns0
ip netns exec ns0 ip link set lo up
ip netns exec ns0 ip link set veth1 name eth0
ip netns exec ns0 ip addr add 10.20.1.3/24 dev eth0
ip netns exec ns0 ip link set eth0 up

ip netns exec ns0 ping -c 2 10.20.1.2

// clean
ip link del dev vxlan0
ip netns del ns0
ip link del veth0
ip link del br0

root@10-102-126-146:/# ip netns exec ns0 ping -c 2 10.20.1.2
PING 10.20.1.2 (10.20.1.2) 56(84) bytes of data.
64 bytes from 10.20.1.2: icmp_seq=1 ttl=64 time=1.65 ms
64 bytes from 10.20.1.2: icmp_seq=2 ttl=64 time=0.679 ms

--- 10.20.1.2 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1002ms
rtt min/avg/max/mdev = 0.679/1.165/1.652/0.486 ms

root@10-102-126-146:/#  ip netns exec ns0 ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
46: eth0@if47: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 qdisc noqueue state UP group default qlen 1000
    link/ether a6:db:eb:70:f9:a3 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 10.20.1.3/24 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::a4db:ebff:fe70:f9a3/64 scope link
       valid_lft forever preferred_lft forever
root@10-102-126-146:/# ip netns exec ns0 arp
Address                  HWtype  HWaddress           Flags Mask            Iface
10.20.1.2                ether   96:45:3b:d2:2c:5c   C                     eth0
laik / demo

vxlan简单多播组网 #25
