*Router: swiCE2.switch.ch*
*Command: show ip bgp 46.239.64.0/24*
*% Network not in table*
*
*
*Router: *swiCE2.switch.ch
*Command: *show ip bgp 46.239.64.0/21
BGP routing table entry for 46.239.64.0/21, version 21580932
Paths: (1 available, no best path)
Multipath: eBGP
Not advertised to any peer
3356 3549 16150 2840, (received-only)
213.242.73.73 from 213.242.73.73 (4.69.187.34)
Origin IGP, metric 0, localpref 100, valid, external
Community: 3356:2 3356:22 3356:86 3356:502 3356:666 3356:2066
3549:350 3549:4773 3549:31208 16150:80 16150:40752 16150:63392
*
*
*Router:* swiCE2.switch.ch
*Command:* ping 46.239.64.34
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 46.239.64.34, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/42/44 ms
*Router:* swiCE2.switch.ch
*Command:* trace 46.239.64.34
Type escape sequence to abort.
Tracing the route to ns4.gsix.se (46.239.64.34)
VRF info: (vrf in name/id, vrf out name/id)
1 te-3-4.car1.Geneva1.Level3.net (213.242.73.73) 0 msec 0 msec 0 msec
2 ae-5-5.car1.Lyon1.Level3.net (4.69.137.82) [MPLS: Label 709 Exp 0]
12 msec 8 msec 8 msec
3 ae-9-9.ebr2.Paris1.Level3.net (4.69.134.50) [MPLS: Label 1758 Exp
0] 12 msec 12 msec 8 msec
4 ae-72-72.csw2.Paris1.Level3.net (4.69.161.98) [MPLS: Label 1720
Exp 0] 8 msec
ae-62-62.csw1.Paris1.Level3.net (4.69.161.94) [MPLS: Label 1744
Exp 0] 12 msec
ae-92-92.csw4.Paris1.Level3.net (4.69.161.106) [MPLS: Label 1574
Exp 0] 8 msec
5 4.69.168.7 12 msec
4.69.168.199 48 msec
4.69.168.71 40 msec
6 global-crossing-xe-level3.paris1.level3.net (4.68.127.98) 12 msec
8 msec 12 msec
7 RIX-TELECOM-AB.TenGigabitEthernet7-3.ar3.CPH1.gblx.net
(64.211.111.154) 24 msec 28 msec 28 msec
8 te3-1-r72.cr0-r74.shg5-got.no.p80.net (82.96.1.53) 32 msec 28 msec 32 msec
9 94.136.70.42 32 msec 32 msec 32 msec
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 Timed out waiting for data:
write error: filehandle isn't open
[root@uc ~]# traceroute 46.239.64.34
traceroute to 46.239.64.34 (46.239.64.34), 30 hops max, 60 byte packets
1 ve24.ccr01.zrh01.neocarrier.net (217.146.49.1) 2.690 ms 2.739 ms 2.796 ms
2 ae0.419.ar3.ZRH1.gblx.net (64.214.129.5) 0.476 ms 0.526 ms 0.607 ms
3 ae4.scr3.FRA4.gblx.net (67.16.146.10) 5.192 ms
ae1.scr4.FRA4.gblx.net (67.16.145.234) 5.191 ms 38.520 ms
4 po1.ar3.CPH1.gblx.net (67.17.105.242) 32.030 ms 32.045 ms
po3.ar3.CPH1.gblx.net (67.17.105.246) 32.097 ms
5 RIX-TELECOM-AB.TenGigabitEthernet7-3.ar3.CPH1.gblx.net
(64.211.111.154) 33.665 ms 33.660 ms 33.896 ms
6 te3-1-r72.cr0-r74.shg5-got.no.p80.net (82.96.1.53) 32.421 ms
32.461 ms 32.421 ms
7 94.136.70.42 (94.136.70.42) 37.392 ms 37.372 ms 37.432 ms
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
traceroute to 46.239.64.34 (46.239.64.34), 30 hops max, 60 byte packets
1 ve24.ccr01.zrh01.neocarrier.net (217.146.49.1) 0.297 ms 0.390 ms 0.475 ms
2 ae0.419.ar3.ZRH1.gblx.net (64.214.129.5) 0.467 ms 0.538 ms 0.621 ms
3 ae1.scr4.FRA4.gblx.net (67.16.145.234) 5.192 ms
ae4.scr3.FRA4.gblx.net (67.16.146.10) 5.183 ms 5.190 ms
4 po3.ar3.CPH1.gblx.net (67.17.105.246) 32.021 ms
po1.ar3.CPH1.gblx.net (67.17.105.242) 32.089 ms po3.ar3.CPH1.gblx.net
(67.17.105.246) 32.041 ms
5 RIX-TELECOM-AB.TenGigabitEthernet7-3.ar3.CPH1.gblx.net
(64.211.111.154) 33.674 ms 33.769 ms 33.757 ms
6 te3-1-r72.cr0-r74.shg5-got.no.p80.net (82.96.1.53) 32.482 ms
32.495 ms 32.468 ms
7 94.136.70.42 (94.136.70.42) 176.607 ms 168.731 ms 168.715 ms
8 ns1.sgsit.se (46.239.64.34) 43.376 ms 43.370 ms 43.397 ms
My take..
The network 46.239.64.0/24 is not found in BGP routing table, but
46.239.64.0/21 is there, obvious nothing silly here.
The target responds from switch to ping, which means each side can
talk to each other (http://www.switch.ch/network/tools/lookingglass/).
Traceroute seems quite complete until penultimate device using
standard UDP traceroute, but works using ICMP works until target..
Probably a misinterpreted traceroute result..
On 3 May 2013 16:01, Jeroen Massar <[email protected]> wrote:
> On 2013-05-03 15:49 , Ambauen Daniel wrote:
> [..]
> > Traceroute from our gatway to SWITCH the IP 46.239.64.34 is not
> reachable.
>
> And thus likely a transit issue, not really a DNS issue
> (though having both DNS servers in the same /24 is ... of course).
>
> [..]
> > 12 availo-ic-151342-kbn-b3.c.telia.net (80.239.128.170) (AS 559)
> 33.115 ms 33.063 ms 32.829 ms
> > 13 te3-1-r72.cr0-r74.shg5-got.no.p80.net (82.96.1.53) (AS 559) 36.462
> ms 36.371 ms 44.196 ms
> > 14 94.136.70.42 (94.136.70.42) (AS 559) 36.686 ms 35.728 ms 36.002 ms
> > 15 * * *
> >
> >
> > But the last hop 94.136.70.42 before 46.239.64.34 is reachable from our
> side.
>
> Which likely means that they cannot reach your prefix, as you do have a
> route towards them. (though that is likely, filtering and other many
> problems can also be the case of course)
>
> [..]
> > The entire subnet 46.239.64.34/24 is not reachable from my site.
>
> And hence why neither DNS or anything else that is hosted on it works.
>
> Best to contact SWITCH, who are effectively your transit, and let them
> contact Telia and then likely P80 who can figure out the next step where
> it goes wrong.
>
> Greets,
> Jeroen
>
>
>
> _______________________________________________
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>
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