Description of problem:

The ospf6d component of quagga package allows specifying "per interface" distribution list, for example:

interface eth1.200
 ipv6 ospf6 cost 1
 ipv6 ospf6 hello-interval 10
 ipv6 ospf6 dead-interval 40
 ipv6 ospf6 retransmit-interval 5
 ipv6 ospf6 priority 1
 ipv6 ospf6 transmit-delay 1
 ipv6 ospf6 instance-id 0
 ipv6 ospf6 advertise prefix-list NONE

That declaration works well and it is possible to be saved through the vty console. But the problem appears when one are trying to start or restart the ospf6d daemon with the previous saved declaration - the daemon cannot be started. The problem can be reproduced for all versions of quagga package shipped with RHEL5/6.

Version-Release number of selected component (if applicable):

quagga-0.99.15-5.el6_0.2

How reproducible:

always

Steps to Reproduce:

1. Start ospfd

2. Connect to the vty console
$ telnet ::1 ospf6d

3. Setup ospf6 router, activate the interface, declare an appropriate prefix-list and set it in the interface prefix advertisement option:
>en
# con t
# ipv6 prefix-list NONE seq 5 deny any
# interface eth0
# ipv6 ospf6 advertise prefix-list NONE
# write

4. Stop and start (restart) ospfd
# service ospf6d restart


  
Actual results:

The daemon ospf6d cannot be started

Expected results:

The daemon ospf6d should be start normally

Additional info:

RHEL6 compiled osp6d does not produce backtrace screen output, but under RHEL5, the output looks like:

Starting ospf6d: OSPF6: Received signal 11 at 1325090168 (si_addr 0x48, PC 0xdaf7b1); aborting...
Program counter: ospf6d[0xdaf7b1]
Backtrace for 11 stack frames:
/usr/lib/quagga/libzebra.so.0(zlog_backtrace_sigsafe+0x51)[0x7ce8d1]
/usr/lib/quagga/libzebra.so.0(zlog_signal+0x21e)[0x7cef1e]
/usr/lib/quagga/libzebra.so.0[0x7de7d6]
[0xdf3440]
ospf6d[0xdaf7b1]
/usr/lib/quagga/libzebra.so.0(cmd_execute_command_strict+0x5dd)[0x7b79cd]
/usr/lib/quagga/libzebra.so.0(config_from_file+0x74)[0x7b9e44]
/usr/lib/quagga/libzebra.so.0(vty_read_config+0x147)[0x7b0627]
ospf6d(main+0x287)[0xd9fac7]
/lib/libc.so.6(__libc_start_main+0xdc)[0x188e9c]
ospf6d[0xd9f5b1]