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Author Topic: trying to update traceroute via cisco and not accepted?  (Read 196 times)

a9a1c1

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trying to update traceroute via cisco and not accepted?
« on: March 08, 2017, 01:04:06 PM »

I am currently sage certified but I dont have a vm or pc for ping or tracert,  all I have is my cisco router doing the tunnel back,  so my question is why cant we use that for ping and traceroute?  I know it works but need another machine but dont have the time to build one and use it.  Here is an example of a tracert

IPV6_Tun.Eacompsolutions.net#$ipv6 2A02:920:212E:1::213
Type escape sequence to abort.
Tracing the route to ipv6friday.org (2A02:920:212E:1::213)

  1 a9a1c1-1.tunnel.tserv4.nyc4.ipv6.he.net (2001:470:1F06:D85::1) 12 msec 12 msec 12 msec
  2 ve422.core1.nyc4.he.net (2001:470:0:5D::1) 12 msec 12 msec 8 msec
  3 100ge7-2.core1.lon2.he.net (2001:470:0:2CF::1) 96 msec 76 msec 76 msec
  4 100ge6-2.core1.ams1.he.net (2001:470:0:2D0::2) 88 msec 88 msec 88 msec
  5 10ge1-5.core1.sto1.he.net (2001:470:0:22F::2) 108 msec 116 msec 108 msec
  6 2001:7F8:D:FE::247 108 msec 104 msec 104 msec
  7 htgr01-107.gotanet.se (2A02:920:1FFF:6B::113) 112 msec 104 msec 104 msec
  8 ipv6friday.org (2A02:920:212E:1::213) 112 msec 108 msec 104 msec

not accepted any ideas on what else to do? 
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divad27182

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Re: trying to update traceroute via cisco and not accepted?
« Reply #1 on: March 08, 2017, 01:54:31 PM »

The parser is somewhat simplistic at times.  You might try changing:
  6 2001:7F8:D:FE::247 108 msec 104 msec 104 msec
to
Code: [Select]
  6 2001:7F8:D:FE::247 (2001:7F8:D:FE::247) 108 msec 104 msec 104 msec

I can definitely tell you that if an entry uses the alternate IPv4 derived address formatting, it is rejected.  I.e. if that address were written 2001:7F8:D:FE::0.0.2.71 it would definitely be rejected, even though it is perfectly valid and equivalent.

In any case, I'll try targetting that address tomorrow.  (I've already done my points for today.  :-) )

--David G
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divad27182

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Re: trying to update traceroute via cisco and not accepted?
« Reply #2 on: March 09, 2017, 05:37:00 PM »

In any case, I'll try targetting that address tomorrow.  (I've already done my points for today.  :-) )
Well, I tried it, and I removed the duplicate address I was suggesting, and it worked.  The other major differences were:
  • my addresses were in lower case
  • I had one more hop before reaching ve422.core1.nyc4.he.net
  • My traceroute doesn't assume the target's address gets the target's name, so the last line was:
    Quote
    9  juniper.webway.se (2a02:920:212e:1::213)  131.990 ms  132.554 ms  126.184 ms
Frankly, I would not have thought any of these would cause problems, but it gives me more things to test.   ;)

--David

Edit: correct list formatting

Edit: Upper case didn't make it fail.  Nor did lack of hostnames.

Edit: It appears that the line before the first trace line is important.  It appears that it having a hostname they can resolve is not.
« Last Edit: March 11, 2017, 06:30:57 PM by divad27182 »
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