4-byte ASN testing

[Ibrahim]

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I also got the similar result.

IPv6-GW#sh bgp ipv6 unicast 2001:4810:2000::/35
BGP routing table entry for 2001:4810:2000::/35, version 636867
Paths: (4 available, best #4, table Global-IPv6-Table)
  Advertised to update-groups:
     6
  30071 6175 2497 3257 33437 23456, (received & used)
    2001:4830:E0:18::1 (FE80::207:E9FF:FE10:65A) from
2001:4830:E0:18::1 (216.93.254.13)
      Origin IGP, metric 700, localpref 100, valid, external
      Community: 1970790078
  1752 3356 3257 33437 23456, (received & used)
    2001:7F8:2:804E::2 (FE80::D579:185B) from 2001:7F8:2:804E::2
(213.121.24.91)
      Origin IGP, localpref 100, valid, external
  6435 6175 2497 3257 33437 23456, (received & used)
    2001:E00:F006::2 from 2001:E00:F006::2 (64.65.64.149)
      Origin IGP, localpref 100, valid, external
  6175 2497 3257 33437 23456, (received & used)
    2001:440:EEEE:FFE0::1 (FE80::2E0:B0FF:FEB4:2C20) from
2001:440:EEEE:FFE0::1 (144.228.240.145)
      Origin IGP, metric 20, localpref 100, valid, external, best

IPv6-GW#traceroute 2001:4810:2345::6

Type escape sequence to abort.
Tracing the route to as4test.hotnic.net (2001:4810:2345::6)

  1 sl-bb1v6-sea-t-25.sprintv6.net (2001:440:EEEE:FFE0::1) 216 msec
216 msec 220 msec
  2 sl-bb1v6-sj-t-1004.sprintv6.net (2001:440:1239:1007::2) 240 msec
240 msec 240 msec
  3 2001:440:EEEE:FFCD::2 292 msec 324 msec 340 msec
  4 plt001ix06.IIJ.Net (2001:240:BB62:8000::4001) 332 msec 316 msec
320 msec
  5 2001:48B0:BB00:F007::4006 308 msec 316 msec 312 msec
  6 equinix6-sjc.ip.tiscali.net (2001:504:0:1::3257:1) 480 msec 512
msec 508 msec
  7 so-2-0-0.chi11.ip6.tiscali.net (2001:668:0:2::1:151) 492 msec 512
msec 508 msec
  8 so-0-0-0.was10.ip6.tiscali.net (2001:668:0:2::1:F2) 492 msec 500
msec 504 msec
  9 2001:504:0:2:0:3:3437:1 420 msec 412 msec 436 msec
 10 2001:504:0:2:0:3:3437:1 !H  !H  !H



Regards
Ibrahim


JAKO Andras wrote:
>
> We see that prefix from AS2547:
>
> BGP routing table entry for 2001:4810:2000::/35, version 421724
> Paths: (2 available, best #1, table Global-IPv6-Table) Advertised
> to update-groups: 1          2 1955 20965 3356 3257 33437 23456
> 2001:738:2000:201::1 from 2001:738:2000:201::1 (195.111.97.83)
> Origin IGP, localpref 100, valid, external, best Community:
> 20965:3356
>
>
>> 2001:4810:2345::6 should be pingable/traceable if you can see
>> that route.
>
> But I don't get an echo reply, and traceroute fails with
> "Destination Unreachable - Address Unreachable":
>
> traceroute6 to 2001:4810:2345::6 (2001:4810:2345::6) from
> 2001:738:2001:2001::c, 64 hops max, 12 byte packets 1  fe80::1%fxp0
> 0.446 ms  0.283 ms  0.255 ms 2  2001:738:2000:201::1  0.483 ms
> 0.294 ms  0.260 ms 3  c6513.vh.hbone.hu  0.512 ms  0.497 ms  0.446
> ms 4  2001:798:1b:10aa::6  0.599 ms  0.753 ms  0.494 ms 5
> 2001:798:1b:10aa::5  0.565 ms  0.740 ms  0.816 ms 6
> so-6-1-0.rt1.vie.at.geant2.net  5.295 ms  5.275 ms  5.259 ms 7
> 2001:1900:5:2::5  130.396 ms  28.606 ms  28.438 ms 8
> 2001:1900:5:1::1  41.905 ms  42.186 ms  41.852 ms 9
> 2001:7f8:4:1::cb9:1  42.354 ms  42.256 ms 2001:7f8:4::cb9:1  63.515
> ms 10  so-1-0-0.nyc33.ip6.tiscali.net  112.112 ms
> so-6-1-0.was10.ip6.tiscali.net  139.219 ms
> so-1-0-0.nyc33.ip6.tiscali.net  111.921 ms 11
> so-1-0-0.was10.ip6.tiscali.net  118.602 ms
> so-1-0-0.was10.ip6.tiscali.net  117.406 ms
> so-1-0-0.was10.ip6.tiscali.net  150.292 ms 12
> 2001:504:0:2:0:3:3437:1  135.031 ms so-7-0-0.was10.ip6.tiscali.net
> 117.728 ms 2001:504:0:2:0:3:3437:1  122.983 ms 13
> 2001:504:0:2:0:3:3437:1  121.769 ms  127.159 ms !A  122.102 ms 14
> 2001:504:0:2:0:3:3437:1  136.154 ms !A  122.245 ms !A  122.058 ms
> !A
>
> (Our above mentioned router is the first hop in the traceroute
> output.)
>
> Don't know if this problem is related to the 4-byte ASN somehow,
> maybe not.
>
> Andras
>
>

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