Bug 57870
| Summary: | IPv6 reverse IP queries incorrectly formatted | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Russell King <rmk> |
| Component: | glibc | Assignee: | Jakub Jelinek <jakub> |
| Status: | CLOSED NOTABUG | QA Contact: | Brian Brock <bbrock> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.2 | CC: | fweimer, pekkas |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2001-12-29 16:35:18 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Only ip6.int nibble-based structure was moved under ip6.arpa. Conversion to bitstring labels was not intended by the BCP document. This has been clarified by the author of the draft. |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:0.9.6) Gecko/20011120 Description of problem: With glibc 2.2.2, IPv6 reverse queries are formatted correctly, according to RFC1886: a.b.c.d.e.f.g.h.i.j.(etc).ip6.int. With glibc 2.2.4, IPv6 reverse queries are formatted differently: a.b.c.d.e.f.g.h.i.j.(etc).ip6.arpa. which meets neither RFC1886 nor RFC2874. RFC1886 mandates the use of the nibble based .ip6.int. domain, where as RFC2874 mandates the use of \[xprefix/length].ip6.arpa. bitstring queries. Therefore, glibc 2.2.4-based systems are unable to perform any IPv6 reverse IP queries. Note also that RFC2874 recommends that the old RFC1886 method is tried in addition - this seems to be a sensible idea since the .ip6.arpa domain appears to be currently empty. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. setup two ipv6 hosts with RFC1886 and RFC2874-compliant nameserver PTR records. 2. login over ssh from one host to the other host. 3. netstat 4. host <ipv6 address> Actual Results: netstat returns only numeric addresses host returns a valid name record. Expected Results: netstat should display the name. Additional info: bind 9.1.0-10 used. glibc 2.2.2 works correctly, sending RFC1886 compliant PTR requests.