dhcrelay listen at all ifs but should only on dedicated ifs

IMMO WETZEL IMMO.WETZEL at adtran.com
Thu Jan 11 13:18:01 UTC 2018


user@ testbed-router:~$ brctl show
bridge name     bridge id               STP enabled     interfaces
br_TB102_DPU            8000.42b99b1e1cc9       no              ens19.2002
                                                        ens19.2002.4090
br_TB102_TMN            8000.7a598845a623       no              ens20.1002
br_TB103_DPU            8000.42b99b1e1cc9       no              ens19.2003
                                                        ens19.2003.4090
br_TB103_TMN            8000.7a598845a623       no              ens20.1003
br_TB104_DPU            8000.42b99b1e1cc9       no              ens19.2004
                                                        ens19.2004.4090
br_TB104_TMN            8000.7a598845a623       no              ens20.1004
br_TB105_DPU            8000.42b99b1e1cc9       no              ens19.2005.4090
br_TB105_TMN            8000.7a598845a623       no              ens20.1005
br_TB106_DPU            8000.42b99b1e1cc9       no              ens19.2006.4090
br_TB106_TMN            8000.7a598845a623       no              ens20.1006
br_TB133_DPU            8000.42b99b1e1cc9       no              ens19.2033
                                                        ens19.2033.4090
br_TB133_TMN            8000.7a598845a623       no              ens20.1033
br_TB134_DPU            8000.42b99b1e1cc9       no              ens19.2034
                                                        ens19.2034.4090
br_TB134_TMN            8000.7a598845a623       no              ens20.1034
br_TB260_1_DPU          8000.42b99b1e1cc9       no              ens19.2097
                                                        ens19.2097.4090
br_TB260_2_DPU          8000.42b99b1e1cc9       no              ens19.2113
                                                        ens19.2113.4090
br_TB260_3_DPU          8000.42b99b1e1cc9       no              ens19.2129
                                                        ens19.2129.4090
br_TB260_4_DPU          8000.42b99b1e1cc9       no              ens19.2145
                                                        ens19.2145.4090
br_TB260_TMN            8000.7a598845a623       no              ens20.1160
br_TB991_DPU            8000.42b99b1e1cc9       no              ens19.1991
                                                        ens19.1991.4090
br_TB991_TMN            8000.7a598845a623       no              ens20.1001
docker0         8000.0242380e275a       no
user@ testbed-router:~$ 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: ens18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 36:78:14:96:53:13 brd ff:ff:ff:ff:ff:ff
    inet 10.160.8.83/23 brd 10.160.9.255 scope global ens18
       valid_lft forever preferred_lft forever
    inet6 fe80::3478:14ff:fe96:5313/64 scope link
       valid_lft forever preferred_lft forever
3: ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
4: ens20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
5: ens20.1002 at ens20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB102_TMN state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
6: ens19.2002 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB102_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
7: ens20.1003 at ens20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB103_TMN state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
8: ens20.1004 at ens20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB104_TMN state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
9: br_TB102_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.60.17/28 brd 10.160.60.31 scope global br_TB102_DPU
       valid_lft forever preferred_lft forever
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
10: br_TB102_TMN: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet 10.160.50.17/28 brd 10.160.50.31 scope global br_TB102_TMN
       valid_lft forever preferred_lft forever
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
11: br_TB103_TMN: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet 10.160.50.33/28 brd 10.160.50.47 scope global br_TB103_TMN
       valid_lft forever preferred_lft forever
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
12: ens20.1005 at ens20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB105_TMN state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
13: ens19.2002.4090 at ens19.2002: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB102_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
14: ens20.1006 at ens20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB106_TMN state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
15: ens19.2003 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB103_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
16: br_TB104_TMN: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet 10.160.50.49/28 brd 10.160.50.63 scope global br_TB104_TMN
       valid_lft forever preferred_lft forever
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
17: ens20.1033 at ens20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB133_TMN state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
18: ens20.1034 at ens20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB134_TMN state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
19: ens20.1160 at ens20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB260_TMN state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
20: ens19.2003.4090 at ens19.2003: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB103_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
21: ens19.2004 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB104_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
22: br_TB105_TMN: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet 10.160.50.65/28 brd 10.160.50.79 scope global br_TB105_TMN
       valid_lft forever preferred_lft forever
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
23: ens20.1001 at ens20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB991_TMN state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
24: ens19.2004.4090 at ens19.2004: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB104_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
25: ens19.2005 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
26: ens19.2005.4090 at ens19.2005: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB105_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
27: ens19.2006 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
28: ens19.2006.4090 at ens19.2006: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB106_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
29: ens19.2033 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB133_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
30: br_TB103_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.60.33/28 brd 10.160.60.47 scope global br_TB103_DPU
       valid_lft forever preferred_lft forever
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
31: ens19.2033.4090 at ens19.2033: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB133_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
32: ens19.2034 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB134_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
33: br_TB106_TMN: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet 10.160.50.81/28 brd 10.160.50.95 scope global br_TB106_TMN
       valid_lft forever preferred_lft forever
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
34: ens19.2034.4090 at ens19.2034: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB134_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
35: br_TB133_TMN: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet 10.160.52.1/28 brd 10.160.52.15 scope global br_TB133_TMN
       valid_lft forever preferred_lft forever
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
36: br_TB104_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.60.49/28 brd 10.160.60.63 scope global br_TB104_DPU
       valid_lft forever preferred_lft forever
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
37: ens19.2097 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB260_1_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
38: br_TB134_TMN: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet 10.160.52.17/28 brd 10.160.52.31 scope global br_TB134_TMN
       valid_lft forever preferred_lft forever
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
39: br_TB260_TMN: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet 10.160.59.241/28 brd 10.160.59.255 scope global br_TB260_TMN
       valid_lft forever preferred_lft forever
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
40: ens19.2097.4090 at ens19.2097: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB260_1_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
41: ens19.2113 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB260_2_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
42: ens19.2113.4090 at ens19.2113: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB260_2_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
43: ens19.2129 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB260_3_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
44: ens19.2129.4090 at ens19.2129: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB260_3_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
45: ens19.2145 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB260_4_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
46: ens19.2145.4090 at ens19.2145: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB260_4_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
47: ens19.1991 at ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB991_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
48: ens19.1991.4090 at ens19.1991: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br_TB991_DPU state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
49: br_TB105_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.60.65/28 brd 10.160.60.79 scope global br_TB105_DPU
       valid_lft forever preferred_lft forever
   inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
50: br_TB106_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.60.81/28 brd 10.160.60.95 scope global br_TB106_DPU
       valid_lft forever preferred_lft forever
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
51: br_TB133_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.62.1/28 brd 10.160.62.15 scope global br_TB133_DPU
       valid_lft forever preferred_lft forever
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
52: br_TB991_TMN: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 7a:59:88:45:a6:23 brd ff:ff:ff:ff:ff:ff
    inet 10.160.50.1/28 brd 10.160.50.15 scope global br_TB991_TMN
       valid_lft forever preferred_lft forever
    inet6 fe80::7859:88ff:fe45:a623/64 scope link
       valid_lft forever preferred_lft forever
53: br_TB134_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.62.17/28 brd 10.160.62.31 scope global br_TB134_DPU
       valid_lft forever preferred_lft forever
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
54: br_TB260_1_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.66.1/24 brd 10.160.66.255 scope global br_TB260_1_DPU
       valid_lft forever preferred_lft forever
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
55: br_TB260_2_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.67.1/24 brd 10.160.67.255 scope global br_TB260_2_DPU
       valid_lft forever preferred_lft forever
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
56: br_TB260_3_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.68.1/24 brd 10.160.68.255 scope global br_TB260_3_DPU
       valid_lft forever preferred_lft forever
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
57: br_TB260_4_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.69.1/24 brd 10.160.69.255 scope global br_TB260_4_DPU
       valid_lft forever preferred_lft forever
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
58: br_TB991_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 42:b9:9b:1e:1c:c9 brd ff:ff:ff:ff:ff:ff
    inet 10.160.60.1/28 brd 10.160.60.15 scope global br_TB991_DPU
       valid_lft forever preferred_lft forever
    inet6 fe80::40b9:9bff:fe1e:1cc9/64 scope link
       valid_lft forever preferred_lft forever
59: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
    link/ether 02:42:38:0e:27:5a brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:38ff:fe0e:275a/64 scope link
       valid_lft forever preferred_lft forever
user at testbed-router:~$

Immo Wetzel

From: dhcp-users [mailto:dhcp-users-bounces at lists.isc.org] On Behalf Of Patrick Cervicek
Sent: Thursday, January 11, 2018 12:23 AM
To: Users of ISC DHCP
Subject: Re: dhcrelay listen at all ifs but should only on dedicated ifs

It looks like your bridge interface has no IP address

Please provide:
brctl show
ip addr
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