ip-addr.txt

$ ip addr
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: enp8s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UP group default qlen 1000
    link/ether 04:d9:f5:1f:ce:98 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::6d9:f5ff:fe1f:ce98/64 scope link 
       valid_lft forever preferred_lft forever
3: tap0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UP group default qlen 1000
    link/ether 3e:de:5f:19:fb:97 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::3cde:5fff:fe19:fb97/64 scope link 
       valid_lft forever preferred_lft forever
4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 92:59:e9:9d:38:d0 brd ff:ff:ff:ff:ff:ff
    inet 192.168.2.69/24 brd 192.168.2.255 scope global dynamic noprefixroute br0
       valid_lft 85732sec preferred_lft 74932sec
    inet6 2601:647:4e00:bdc2:dc57:210d:46a2:2939/64 scope global temporary dynamic 
       valid_lft 604129sec preferred_lft 85696sec
    inet6 2601:647:4e00:bdc2:9059:e9ff:fe9d:38d0/64 scope global dynamic mngtmpaddr noprefixroute 
       valid_lft 2591511sec preferred_lft 604311sec
    inet6 2601:647:4e00:bdc2:a0a7:7954:c1cc:8b44/64 scope global temporary dynamic 
       valid_lft 604102sec preferred_lft 85669sec
    inet6 2601:647:4e00:bdc2:1017:62ec:3a7c:28f3/64 scope global temporary dynamic 
       valid_lft 603833sec preferred_lft 85400sec
    inet6 fe80::9059:e9ff:fe9d:38d0/64 scope link 
       valid_lft forever preferred_lft forever
5: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:35:74:41:32 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever

ip-link.txt

$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp8s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UP mode DEFAULT group default qlen 1000
    link/ether 04:d9:f5:1f:ce:98 brd ff:ff:ff:ff:ff:ff
3: tap0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UP mode DEFAULT group default qlen 1000
    link/ether 3e:de:5f:19:fb:97 brd ff:ff:ff:ff:ff:ff
4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    link/ether 92:59:e9:9d:38:d0 brd ff:ff:ff:ff:ff:ff
5: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default 
    link/ether 02:42:35:74:41:32 brd ff:ff:ff:ff:ff:ff

tcpdump.txt

$ sudo tcpdump -i br0 -p -n 'port 58 or port 68'      
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on br0, link-type EN10MB (Ethernet), capture size 262144 bytes
13:19:09.548104 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 52:54:00:0e:0d:20, length 300
13:19:11.065809 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 52:54:00:0e:0d:20, length 300
13:19:13.622960 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 52:54:00:0e:0d:20, length 300
13:19:17.741993 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 52:54:00:0e:0d:20, length 300