Seattle-area centurylink (residential fiber) on the list?

[William Herrin <bill () herrin us>]

Howdy,

Is anyone from Centurylink in the Seattle area on the list? Would you
mind contacting me offlist?

My residential fiber has been bouncing for a few hours. I figured it
was something physical and scheduled a technician, but on closer
examination I'm seeing something weird with the PPPoE. It chugs along
happily for a while (dc:38:e1:cd:4f:7a is you, 44:1e:a1:44:70:3f is
me) and then I lose *my* connectivity for 10-20 seconds but during
that window there's a big spew of packets that aren't addressed to me.
The following is just the PPPoE LCP messages captured by tcpdump, but
the misdirected traffic also appears to include TCP/IP user data for
customers who are not me.


20:15:13.278955 44:1e:a1:44:70:3f > dc:38:e1:cd:4f:7a, ethertype PPPoE
S (0x8864), length 30: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 73, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0xd9ab6924
20:15:13.280651 dc:38:e1:cd:4f:7a > 44:1e:a1:44:70:3f, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Reply (0x0a), id 73, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x24a0da14
20:15:20.712278 dc:38:e1:cd:4f:7a > 44:1e:a1:44:70:3f, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 97, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x24a0da14
20:15:20.712418 44:1e:a1:44:70:3f > dc:38:e1:cd:4f:7a, ethertype PPPoE
S (0x8864), length 30: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Reply (0x0a), id 97, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0xd9ab6924
20:15:33.291480 44:1e:a1:44:70:3f > dc:38:e1:cd:4f:7a, ethertype PPPoE
S (0x8864), length 30: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 74, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0xd9ab6924
20:15:53.293020 44:1e:a1:44:70:3f > dc:38:e1:cd:4f:7a, ethertype PPPoE
S (0x8864), length 30: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 75, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0xd9ab6924
20:15:58.165578 dc:38:e1:cd:4f:7a > 0c:83:cc:e2:46:82, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x175] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 58, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x1b3bc70b
20:15:58.312737 dc:38:e1:cd:4f:7a > 0c:83:cc:fb:9c:60, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x35d] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 56, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x10318647
20:16:00.517865 dc:38:e1:cd:4f:7a > 88:6a:e3:64:fe:1a, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x17a] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 58, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x74677bcb
20:16:01.215725 dc:38:e1:cd:4f:7a > 4c:c5:3e:9e:16:e7, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x1f9] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 57, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x2a507cd9
20:16:02.162884 dc:38:e1:cd:4f:7a > d8:ec:e5:04:d7:bd, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x18f] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 57, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x53806fa0
20:16:02.911642 dc:38:e1:cd:4f:7a > d8:ec:e5:04:d6:fd, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x287] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 57, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x363109e1
20:16:03.315970 dc:38:e1:cd:4f:7a > 0c:83:cc:fe:dc:10, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x7f] LCP (0xc021), length 10: LCP,
Echo-Request (0x09), id 58, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x1916d95f
20:16:05.713807 dc:38:e1:cd:4f:7a > 44:1e:a1:44:70:3f, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 100, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x24a0da14
20:16:05.713968 44:1e:a1:44:70:3f > dc:38:e1:cd:4f:7a, ethertype PPPoE
S (0x8864), length 30: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Reply (0x0a), id 100, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0xd9ab6924
20:16:08.257543 dc:38:e1:cd:4f:7a > d8:ec:e5:02:1c:b5, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x23a] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 58, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x37a24174
20:16:08.858581 dc:38:e1:cd:4f:7a > 0c:83:cc:dd:7b:3c, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0xdd] LCP (0xc021), length 10: LCP,
Echo-Request (0x09), id 58, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x79cb769d
20:16:11.912788 dc:38:e1:cd:4f:7a > 4c:c5:3e:75:b2:f4, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x227] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 58, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x58cab7de
20:16:12.070053 dc:38:e1:cd:4f:7a > 4c:c5:3e:75:b2:f4, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x227] LCP (0xc021), length 6: LCP,
Term-Request (0x05), id 10, length 6
        encoded length 4 (=Option(s) length 0)
20:16:13.300753 44:1e:a1:44:70:3f > dc:38:e1:cd:4f:7a, ethertype PPPoE
S (0x8864), length 30: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 76, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0xd9ab6924
20:16:13.302748 dc:38:e1:cd:4f:7a > 44:1e:a1:44:70:3f, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Reply (0x0a), id 76, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x24a0da14
20:16:13.312884 dc:38:e1:cd:4f:7a > 0c:83:cc:fb:9c:60, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x35d] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 57, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x10318647
20:16:13.469980 dc:38:e1:cd:4f:7a > 0c:83:cc:fb:9c:60, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x35d] LCP (0xc021), length 6: LCP,
Term-Request (0x05), id 243, length 6
        encoded length 4 (=Option(s) length 0)
20:16:15.517997 dc:38:e1:cd:4f:7a > 88:6a:e3:64:fe:1a, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x17a] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 59, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x74677bcb
20:16:15.670053 dc:38:e1:cd:4f:7a > 88:6a:e3:64:fe:1a, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x17a] LCP (0xc021), length 6: LCP,
Term-Request (0x05), id 2, length 6
        encoded length 4 (=Option(s) length 0)
20:16:16.215984 dc:38:e1:cd:4f:7a > 4c:c5:3e:9e:16:e7, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x1f9] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 58, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x2a507cd9
20:16:16.370130 dc:38:e1:cd:4f:7a > 4c:c5:3e:9e:16:e7, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x1f9] LCP (0xc021), length 6: LCP,
Term-Request (0x05), id 149, length 6
        encoded length 4 (=Option(s) length 0)
20:16:17.162973 dc:38:e1:cd:4f:7a > d8:ec:e5:04:d7:bd, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x18f] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 58, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x53806fa0
20:16:17.320374 dc:38:e1:cd:4f:7a > d8:ec:e5:04:d7:bd, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x18f] LCP (0xc021), length 6: LCP,
Term-Request (0x05), id 243, length 6
        encoded length 4 (=Option(s) length 0)
20:16:17.911948 dc:38:e1:cd:4f:7a > d8:ec:e5:04:d6:fd, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x287] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 58, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x363109e1
20:16:18.070000 dc:38:e1:cd:4f:7a > d8:ec:e5:04:d6:fd, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x287] LCP (0xc021), length 6: LCP,
Term-Request (0x05), id 86, length 6
        encoded length 4 (=Option(s) length 0)
20:16:18.316035 dc:38:e1:cd:4f:7a > 0c:83:cc:fe:dc:10, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x7f] LCP (0xc021), length 10: LCP,
Echo-Request (0x09), id 59, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x1916d95f
20:16:18.469998 dc:38:e1:cd:4f:7a > 0c:83:cc:fe:dc:10, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x7f] LCP (0xc021), length 6: LCP,
Term-Request (0x05), id 31, length 6
        encoded length 4 (=Option(s) length 0)
20:16:20.712679 dc:38:e1:cd:4f:7a > 44:1e:a1:44:70:3f, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 101, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x24a0da14
20:16:20.712830 44:1e:a1:44:70:3f > dc:38:e1:cd:4f:7a, ethertype PPPoE
S (0x8864), length 30: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Reply (0x0a), id 101, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0xd9ab6924
20:16:23.257678 dc:38:e1:cd:4f:7a > d8:ec:e5:02:1c:b5, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x23a] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 59, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x37a24174
20:16:23.420171 dc:38:e1:cd:4f:7a > d8:ec:e5:02:1c:b5, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x23a] LCP (0xc021), length 6: LCP,
Term-Request (0x05), id 198, length 6
        encoded length 4 (=Option(s) length 0)
20:16:23.858727 dc:38:e1:cd:4f:7a > 0c:83:cc:dd:7b:3c, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0xdd] LCP (0xc021), length 10: LCP,
Echo-Request (0x09), id 59, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x79cb769d
20:16:24.020200 dc:38:e1:cd:4f:7a > 0c:83:cc:dd:7b:3c, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0xdd] LCP (0xc021), length 6: LCP,
Term-Request (0x05), id 223, length 6
        encoded length 4 (=Option(s) length 0)
20:16:33.311230 44:1e:a1:44:70:3f > dc:38:e1:cd:4f:7a, ethertype PPPoE
S (0x8864), length 30: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Request (0x09), id 77, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0xd9ab6924
20:16:33.313248 dc:38:e1:cd:4f:7a > 44:1e:a1:44:70:3f, ethertype PPPoE
S (0x8864), length 56: PPPoE  [ses 0x4e6] LCP (0xc021), length 10:
LCP, Echo-Reply (0x0a), id 77, length 10
        encoded length 8 (=Option(s) length 4)
          Magic-Num 0x24a0da14


-- 
William Herrin
bill () herrin us
https://bill.herrin.us/