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root@deb10:~# ifconfig veth0
veth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 1.1.1.1 netmask 255.255.255.252 broadcast 1.1.1.3
inet6 fe80::60df:c7ff:fe29:b01d prefixlen 64 scopeid 0x20<link>
ether 62:df:c7:29:b0:1d txqueuelen 1000 (Ethernet)
RX packets 12 bytes 936 (936.0 😎
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 79 bytes 45896 (44.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
root@deb10:~# ifconfig veth0.2.3
veth0.2.3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 3.3.3.1 netmask 255.0.0.0 broadcast 3.255.255.255
inet6 fe80::60df:c7ff:fe29:b01d prefixlen 64 scopeid 0x20<link>
ether 62:df:c7:29:b0:1d txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 😎
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 27 bytes 23646 (23.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
root@deb10:~# ping 3.3.3.2 -s 1472 -M do
PING 3.3.3.2 (3.3.3.2) 1472(1500) bytes of data.
16:44:13.008815 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 1500)
3.3.3.1 > 3.3.3.2: ICMP echo request, id 5491, seq 1, length 1480
16:44:14.009301 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 1500)
3.3.3.1 > 3.3.3.2: ICMP echo request, id 5491, seq 2, length 1480
16:44:15.033505 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 1500)
3.3.3.1 > 3.3.3.2: ICMP echo request, id 5491, seq 3, length 1480
^C
--- 3.3.3.2 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 27ms
root@deb10:~# uname -a
Linux deb10 5.7.0-rc5-amd64 #1 SMP Debian 5.7~rc5-1~exp1 (2020-05-10) x86_64 GNU/LinuxMM
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