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Bug 230941 - F7t2: IPv6 stateless autoconfig broken w/ network install
F7t2: IPv6 stateless autoconfig broken w/ network install
Product: Fedora
Classification: Fedora
Component: anaconda (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: David Cantrell
: Reopened
: 231502 (view as bug list)
Depends On:
  Show dependency treegraph
Reported: 2007-03-04 17:57 EST by Mark McClelland
Modified: 2007-11-30 17:11 EST (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2007-03-12 11:13:48 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Mark McClelland 2007-03-04 17:57:25 EST
Description of problem:
IPv6 stateless autoconfig ("Automatic neighbor discovery") doesn't work when
setting up TCP/IP for a network install of Fedora 7 test 2 (either i386 or
X86_64). It looks like it is trying to do DHCPv6 instead; selecting DHCPv6 gives
identical results. There is no DHCP/DHCPv6 or IPv4 connectivity on this
interface. Here's the relevant anaconda log:

14:20:35 INFO    : need to set up networking
14:20:35 INFO    : going to pick interface
14:20:41 INFO    : going to do getNetConfig
14:20:41 INFO    : eth1 is not a wireless adapter
14:20:55 INFO    : DHCP eth1  - bringing link UP - 11043 65
14:20:55 INFO    : DHCPv6: NIC: 0x93e5a0 eth1 0x93e3f0
14:21:41 INFO    : DHCPv6 eth1 - state: DHC_TIMEDOUT
14:21:41 ERROR   : DHCPv6 eth1 - TIMED OUT - failure.

(I also tried with eth0 and got the same result)

Version-Release number of selected component (if applicable):
Fedora 7 test 2

How reproducible:
Every time

Steps to Reproduce:
1. Start anaconda from CD (boot.iso)
2. Choose HTTP install source
3. Choose network interface
4. At "Configure TCP/IP" dialog, uncheck "Enable IPv4 support"
5. Leave IPv6 and "Automatic neighbor discovery" enabled, and select "OK"
Actual results:
Box appears that says "Sending request for IP information for eth1". The box
disappears after a minute, and the "Configure TCP/IP" dialog is still there.

Expected results:
Should automatically get network prefix from radvd server
Comment 1 Mark McClelland 2007-03-04 19:02:27 EST
I should also mention that stateless autoconfig ultimately does seem to work,
but only if I choose "Manual configuration" and enter an arbitrary address
within my  /64. See Bug 230949 for more info.
Comment 2 David Cantrell 2007-03-08 15:01:27 EST
Fixed in rawhide.  Thanks. (reassigned back to anaconda since that's where the
bug was)
Comment 3 David Cantrell 2007-03-09 10:57:20 EST
*** Bug 231502 has been marked as a duplicate of this bug. ***
Comment 4 Mark McClelland 2007-03-11 22:38:39 EDT
I tried the boot.iso from this morning's build and it's still broken. When I hit
OK at the "Configure TCP/IP" dialog, I see a messagebox appear for an instant
and then I'm back at the same dialog. This is what appears in anaconda's log
when I do that:

CRITICAL: dhcp_nic: both DISABLE_DHCPv6 and DISABLE_DHCv4 (sic) set.
Comment 5 David Cantrell 2007-03-12 11:13:48 EDT
Corner case I wasn't trapping in doDhcp() in net.c in loader.  If we reach
doDhcp() and the user has caused both DHCP clients to be disabled, I return and
push you to the manual network configuration screens (if appropriate).

Fixed now in rawhide.  Thanks for the feedback.

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