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Slow resolving of reverse addresses with traceroute6
![[nl]](/s/countries/nl.gif) Shadow Hawkins on Thursday, 08 September 2005 09:03:39
When testing traceroute6 on various Fedora Core systems I noted it takes quite a while for each step to be resolved. tcpdump seems to suffer form a similar delay in getting the right name for a given IPv6 address.
I notice in a packet dump (tcpdump -n ....) that the request from my client to my bind 9 server takes the form of x[2001...... (or something along those lines) and not the normal 1.1.0.0.0.... notation I would expect.
Should bind translate these requests or does one need to setup other zones to handle these requests?
Slow resolving of reverse addresses with traceroute6
Upgrade your resolver libraries. IPv6 Reverse DNS should always be in the form of:
c.7.c.7.0.2.e.f.f.f.c.d.0.1.2.0.1.0.0.0.1.0.0.0.8.3.8.0.1.0.0.2.ip6.arpa
Nothing else. No ip6.int and no other weird things.
Slow resolving of reverse addresses with traceroute6
Shadow Hawkins on Thursday, 08 September 2005 14:49:45
Check.
For the record:
Fedora Core 1 does not do thing right.
Fedora Core 3 does thing the right way.
Slow resolving of reverse addresses with traceroute6
Shadow Hawkins on Thursday, 08 September 2005 22:46:55
Upgrading requires a bit more planning. As I am a bit carefull when it comes to replacing glibc on a system.
So if anyone knows of a workaround to translate this with bind or something I would appreciate a hint. Other then that I just see whenever I have enough time to bite the bullet and rebuild the systems with Fedora Core 4.
Slow resolving of reverse addresses with traceroute6
Shadow Hawkins on Friday, 16 September 2005 08:35:44
Could you point to any documentation? I have gone over most IPv6 RFC's I think but have not seen anything mentioned yet.
Perhaps I just missed it and in that case I could do with a pointer.
I noticed it is defined in RFC 2874 section 2.2.1 and never reversed in RFC 3152 but have not seen anything to suggest \[x..... notation is invalid.
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![[ch]](/s/countries/ch.gif)
on Thursday, 08 September 2005 10:19:49
Posting is only allowed when you are