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Author Topic: Can't get /48 to work [solved]  (Read 4093 times)

cedeel

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Can't get /48 to work [solved]
« on: December 10, 2009, 12:15:17 PM »

Hi there..

My /64 is 2001:470:28:d9::/64 and works without any problems.

But my 2001:470:dc35::/48 does not.

My gateway is a linux box set up with 2 interfaces. Adding an ip from the /64 on either one will be ping-able from the outside, but the ones from the /48 not. Not even when configured as a /64 subnet of the /48.

Further, when tracerouting to my /48 address, the traceroute stops before reaching my gateway, which I can't figure out why that happens.

Hope somebody will be able to help me out.
« Last Edit: December 10, 2009, 01:12:55 PM by cedeel »
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cholzhauer

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Re: Can't get /48 to work
« Reply #1 on: December 10, 2009, 12:26:20 PM »

The idea of the /48 is that you choose /64's and distribute them to your hosts, either with RA or DHCPv6.  How are you assigning addresses?


On second thought, maybe the /48 isn't assigned correctly?

Code: [Select]
C:\Users\cholzhauer>tracert -6 2001:470:dc35:0000:0000:0000:0000:0000

Tracing route to 2001:470:dc35:: over a maximum of 30 hops

 
C:\Users\cholzhauer>tracert -6 2001:470:dc35:0000:0000:0000:0000:0000

Tracing route to 2001:470:dc35:: over a maximum of 30 hops

  1    <1 ms    <1 ms    <1 ms  ipv6router.sscorp.com [2001:470:c27d:d000:2e0:18ff:fe9e:5566]
  2    68 ms    63 ms    66 ms  servicespring-1.tunnel.tserv9.chi1.ipv6.he.net [2001:470:1f10:2aa::1]
  3    62 ms    62 ms    72 ms  gige-g3-4.core1.chi1.he.net [2001:470:0:6e::1]
  4    87 ms    84 ms    89 ms  10gigabitethernet2-4.core1.nyc4.he.net [2001:470:0:4e::2]
  5   153 ms   152 ms   160 ms  10gigabitethernet1-2.core1.lon1.he.net [2001:470:0:3e::2]
  6   160 ms   160 ms   160 ms  10gigabitethernet1-1.core1.ams1.he.net [2001:470:0:3f::2]
  7   167 ms   167 ms   170 ms  10gigabitethernet1-1.core1.fra1.he.net [2001:470:0:47::2]
  8   193 ms   199 ms   199 ms  10gigabitethernet1-1.core1.sto1.he.net [2001:470:0:110::2]
  9   192 ms   192 ms   205 ms  2001:470:0:11e::2
 10     *        *        *     Request timed out.
 11     *        *        *     Request timed out.
 12     *     ^C
C:\Users\cholzhauer>c


it almost looks like the /48 doesn't know where to go.  Have you emailed info@he.net and asked them to look into it? That's what I'd do
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broquea

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Re: Can't get /48 to work
« Reply #2 on: December 10, 2009, 12:48:58 PM »

Both your /64 and your /48 appear to be routed to the same correct destination:
Code: [Select]
2001:470:28:d9::/64            2001:470:27:d9::2
2001:470:dc35::/48             2001:470:27:d9::2

Still poking around but not seeing any misconfiguration on our side. I'll push out the /48 static routes again just to be sure. What is an address out of the /48 that you've configured on your side?

Also be sure you email ipv6@he.net not "info".
« Last Edit: December 10, 2009, 12:53:32 PM by broquea »
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broquea

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Re: Can't get /48 to work
« Reply #3 on: December 10, 2009, 01:05:39 PM »

Noticed that tracing from the tserv was sourcing a different tunnel interface even though there was only the 1 static route for the /48. Rebuilt all the tunnels and static routes, looks to be working now.
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cholzhauer

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Re: Can't get /48 to work
« Reply #4 on: December 10, 2009, 01:07:10 PM »

Whoops, got my help addresses mixed up...SIXXS is info and HE is IPv6.

Thanks for the correction
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cedeel

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Re: Can't get /48 to work [solved]
« Reply #5 on: December 10, 2009, 01:13:23 PM »

It was solved by the admin  8)
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