Isc-dhcpd v 3.0.5 and 3.1.0 incompatible?

[Glenn Satchell]

Hi Steffen

This is from the dhcpd.conf man page, in the first paragraph in the section 
titled "DHCP FAILOVER":

     If you wish
     to use the failover protocol, make sure that  both  failover
     peers are running the same version of the ISC DHCP server.

It's possible that changes are made to the failover protocol between
different versions.

regards,
-glenn

>Date: Thu, 31 Jul 2008 21:12:26 +0200
>Subject: Re: Isc-dhcpd v 3.0.5 and 3.1.0 incompatible?
>
>Hmm nevermind..
>3.1.1 compiles neatly on freebsd 7.0, and fixes my problem, so now I just
>have to figure out how to make the rc.d script work for 3.1.1 vs. 3.0.5..
>
>/Steffen
>
>
>On 7/31/08 8:48 PM, "Steffen" <steff at tdc.dk> wrote:
>
>> Hi!
>> 
>> I¹ve been trying to make failover work with a new master server (a small
>> DS107+ box (google it)), which comes with 3.1.0, and a freebsd server which
>> only has 3.0.5 in ports collection (pre ported to freebsd).
>> 
>> My question: is there known problems that will force me to compile 3.1.0 on
>> the freebsd, or is this something new:
>> 
>> Once I bring up both boxes, with config thats worked fine with the previous
>> server (3.0.4) the freebsd (3.0.5) dumps core:
>> box# gdb dhcpd dhcpd.core
>> GNU gdb 6.1.1 [FreeBSD]
>> Copyright 2004 Free Software Foundation, Inc.
>> GDB is free software, covered by the GNU General Public License, and you are
>> welcome to change it and/or distribute copies of it under certain conditions.
>> Type "show copying" to see the conditions.
>> There is absolutely no warranty for GDB.  Type "show warranty" for details.
>> This GDB was configured as "i386-marcel-freebsd"...(no debugging symbols
>> found)...
>> Core was generated by `dhcpd'.
>> Program terminated with signal 8, Arithmetic exception.
>> Reading symbols from /lib/libc.so.7...(no debugging symbols found)...done.
>> Loaded symbols for /lib/libc.so.7
>> Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols
>> found)...done.
>> Loaded symbols for /libexec/ld-elf.so.1
>> #0  0x08066cc8 in dhcp_failover_link_signal ()
>> (gdb) bt
>> #0  0x08066cc8 in dhcp_failover_link_signal ()
>> #1  0x080a1cab in omapi_connection_signal_handler ()
>> #2  0x080a49eb in omapi_io_signal_handler ()
>> #3  0x080a7471 in omapi_signal ()
>> #4  0x080a08ff in omapi_connection_reader_trace ()
>> #5  0x080a093f in omapi_connection_reader ()
>> #6  0x080a5634 in omapi_one_dispatch ()
>> #7  0x0807cf38 in dispatch ()
>> #8  0x0804c960 in main ()
>> (gdb)
>>  
>