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大名鼎鼎的路由器源码。程序分ZEBRA、OSPFRIP等3个包。程序框架采用一个路由协议一个进程的方式

bgp4              4
bgp4+             4+
bgp4+-draft-00    4-
=====================

If you want to peer with old draft version of BGP-4+, please configure
like below:

router bgp ASN
 neighbor PEER version 4-

** Some AS path isn't correctly compared during route selection.  Now
it is fixed.

* Changes in ospfd

** `router zebra' is default behavior.

* Changes in ospf6d

** `router zebra' is default behavior.

* Changes in zebra-0.66

* Changes in zebra

** When other daemon such as gated install routes into the kernel then
zebra blocks.  This is only occur with netlink socket.  Now socket is
set as NONBLOCKING and problem is fixed.  Reported and fixed by
Patrick Koppen <[e-mail]>

* Changes in bgpd

** Now `router zebra' is not needed to insert BGP routes into the
kernel.  It is default behavior.  If you don't want to install the BGP
routes to the kernel, please configure like below:

!
router zebra
 no redistribute bgp
!

** redistribute connected works.

** redistribute static now filter local loopback routes and link local
network.

* Changes in ripd

** Some network check is added.  Patch is done by Carlos Alberto
Barcenilla <[e-mail]>

* Changes in ripngd

** Sometimes ripngd install wrong nexthop into the kernel.  This bug
is fixed now.

** Now `router zebra' is not needed to insert RIPng routes into the
kernel.  It is default behavior. If you don't want to install the BGP
routes to the kernel, please configure like below:

!
router zebra
 no redistribute ripng
!

* Changes in zebra-0.65

* Changes in lib

** `C-c' changes current node to ENABLE_NODE.  Previously it doesn't.

** In ENABLE_NODE, `exit' command close vty connection.

** `service advanced-vty' enable advanced vty function.  If this
service is specified one can directly connect to ENABLE_NODE when
enable password is not set.

** `lines LINES' command is added by Stephen R. van den Berg
<[e-mail]>.

* Changes in zebra

** Basic Linux policy based routing table support is added by Stephen
R. van den Berg <[e-mail]>.

* Changes in bgpd

** route-map command is improved:
  `match ip next-hop': New command.
  `match metric': New command.
  `set metric': Doc fixed.
  `set local-preference': DEFUN added.

* Changes in ripd

** Check of announced network is added.  Now multicast address is
filtered.  Reported by Carlos Alberto Barcenilla
<[e-mail]>

** Check of network 127 is added.  Reported by Carlos Alberto
Barcenilla <[e-mail]>

* Changes in ripngd

** Aging route bug is fixed.

** `router zebra' semantics changed.  ripngd automatically connect to
zebra.

* Changes in ospfd

** `no router ospf' works.

* Changes in ospf6d

** Bug fix about network vertex.

* Changes in zebra-0.64.1.

This is bug fix release.

* Changes in lib

** Add check of sin6_scope_id in struct sockaddr_in6.  For compilation
on implementation which doesn't have sin6_scope_id.  Reported by Wim
Biemolt <[e-mail]>.

* Changes in zebra

** Fix bug of display BGP routes as "O" instead of "B".  Reported by
"William F. Maton" <[e-mail]> and Dave Hartzell
<[e-mail]>.

* Changes in bgpd

** `no network IPV6_NETWORK' statement and `no neighbor IP_ADDR timers
holdtime [TIMER]' statement doesn't work. Reported by Georg Hitsch
<[e-mail]>.  Now both statement work.

* Changes in ospfd

** Last interface is not updated by ospf_if_update().  Reported by
Dave Hartzell <[e-mail]>.

* Changes in ospf6d

** Byte order of ifid is changed.  Due to this change, this code will
not work with previous version, sorry.

** Fix `show ip route' route type mismatch.

** Fix bug of no network IPV6_NETWORK.

** Important bug fix about intra-area-prefix-lsa.

* Changes in zebra-0.64.

* Changes in lib

** prefix-list based filtering routine is added.  Currently used in
bgpd but it will be in other daemons.

* Changes in bgpd

** `no router bgp' works.  But network statement is not cleared.  This
should be fixed in next beta.

** Route reflector related statement is added.

  router bgp ASN
    bgp cluster-id a.b.c.d
    neighbor a.b.c.d route-reflector-client

  is added.

** Prefix list based filtering is added.

  router bgp ASN
    neighbor a.b.c.d prefix-list PREFIX_LIST_NAME

** Prefix list based routing display works.

  show ip bgp prefix-list PREFIX_LIST_NAME

* Changes in ripd

** Fix route metric check bug.  Reported from Mr. Carlos Alberto
Barcenilla.

* Changes in ospf6d

** There are many changes.  If you have interested in ospf6d please
visit ospf6d/README file.

* Changes in zebra-0.63 first beta package.

* Changes in lib

** `copy running-config stgartup-config' command is added.

** prefix length check bug is fixed.  Thanks Marlos Barcenilla
<[e-mail]>.

* Changes in ospfd

** DR and BDR election works.

** OSPF Hello simple authentication works.

* Changes in ospf6d

** Now ospf6d can be compiled on both Linux and *BSD system.

* Changes in zebra-19990420 snapshot

** `make dist' at top directory works now.

* Changes in lib

** VTY has now access-class to restrict remote connection.
Implemented by Alex Bligh <[e-mail]>.

!
line vty
  access-class ACCESS-LIST-NAME
!

** `show version' command added.  Implemented by Carlos Alberto
Barcenilla <[e-mail]>

* Changes in zebra

** `ip address' command on *BSD bug is fixed.

** `no ip address' works now for IPv4 address.

** Now `write terminal' display `ip address' configuration.

* Changes in bgpd

** Redistribute static works now.  Please run both zebra and bgpd.
bgpd.conf should be like this:

!
router zebra
!
router bgp ASN
  redisitribute static
!

* Changes in guile

** configure --enable-guile turns on zebra-guile build.

** (router-bgp ASN) allocates real bgp structre.

* Changes in zebra-19990416 snapshot

** Set version to 0.60 for preparation of beta release.

** New directory guile is added for linking with guile interpreter.

* Changes in zebra

** On GNU/Linux Kernel 2.2.x (with netlink support), zebra detects
asynchronous routing updates.  *BSD support is not yet finished.

* Changes in bgpd

** `show ip bgp regexp ASPATH_REGEX' uses CISCO like regular expression 
instead of RPSL like regular expression.  I'm planing to provide RPSL
like regular expression with `show ip bgp rpsl' or something.

* Changes in lib

** Press '?' at variable mandatory argument, vty prints nothing.  Now
vty outputs description about the argument.  Fixed by Alex Bligh
<[e-mail]>

** buffer.c has some ugly bugs.  Due to the bug, vty interface hangs
when large output date exists.  This bug is fixed. Reported by Alex
Bligh <[e-mail]>.

* Changes in ospfd

** DR and BDR information is shown by `show ip ospf interface' command.

* Changes in zebra-19990408 snapshot

* Changes in bgpd

** Old BGP-4+ specification (described in old draft) treatment bug is
fixed.  It seems that mrtd uses this format as default.  So if you
have problem peering with mrtd and want to use old draft format please
use version statement like this.

neighbor PEER_ADDRESS remote-as ASN
neighbor PEER_ADDRESS version bgp4+-draft-00

** When AS path is epmty (routes generated by bgpd), SEGV is occur
when announce the routes to eBGP peer.  Reported by
[e-mail].

** ip as-path access-list command is added.

** neighbor PEER_ADDRESS filter-list AS_LIST [in|out] command is added.

** neighbor PEER_ADDRESS timers holdtimer TIMER command is added.

* Changes in all daemons

** With KAME stack, terminal interface is now bind AF_INET socket
instead of AF_INET6 one.

* Changes in zebra-19990403 snapshot

* Changes in bgpd

** When bgpd has 'router zebra', bgpd automatically select it's router
ID as most highest interface's IP Address.

** When AS path is empty (in case of iBGP), it doesn't include any AS
segment.  This change is for announcement to gated under iBGP.

* Changes in ospfd

** OSPF hello packet send/receive works.

* Changes in ospf6d

** Yasuhiro Ohara's ospf6d codes is imported.  It is under development
and can't be compiled on any platform.

* Changes in zebra-19990327 snapshot

* Changes in bgpd

** When BGP-4+ connection is done by IPv6 link-local address.  One
have to specify interface index for the connection.  So I've added
interface statement to the neighbor commmand.  Please specify
interface name for getting interface index like below.  This statement
only works on GNU/Linux.  I'll support BSD ASAP.

router bgp 7675
 neighbor fe80::200:f8ff:fe01:5fd3 remote-as 2500
 neighbor fe80::200:f8ff:fe01:5fd3 interface sit3

** For disable BGP peering `shutdown' command is added.

router bgp 7675
 neighbor 10.0.0.1 shutdown

** `description' command is added to neighbor statement.

router bgp 7675
 neighbor 10.0.0.1 description peering with Norway.

** `show ip bgp regexp AS-REGEXP' works again.

show ip bgp regexp AS7675

will show routes which include AS7675.

** When a route which is made from `network' statement is send to
neighbor.  Set it's nexthop to self.  So 10.0.0.0/8 is announced to
the peer A with source address 192.168.1.1.  The routes nexthop is set
to 192.168.1.1.

* Changes in zebra

** In zebra/rtread_sysctl.c, function rtm_read() may overrun allocated
buffer when the address family is not supported and the length is big
(i.e link address).  Reported Achim Patzner <[e-mail]>.

* Changes in ospfd

** Now ospfd receive OSPF packet.

* Changes in zebra-19990319 snapshot

* Changes in configuration and libraries

** User can disable IPv6 feature and/or pthread feature by configure
   option.

  To disable IPv6:    configure --disable-ipv6
  To disable pthread: configure --disable-pthread

** User can disable specified daemon by configure option.

  Don't make zebra:  configure --disable-zebra
  Don't make bgpd:   configure --disable-bgpd
  Don't make ripd:   configure --disable-ripd
  Don't make ripngd: configure --disable-ripngd
  Don't make ospfd:  configure --disable-ospfd
  Don't make ospf6d: configure --disable-ospf6d

** Sample configuration files are installed as 600 file flag.
   Suggested by Jeroen Ruigrok/Asmodai <[e-mail]>.

** syslog logging feature is added by Peter Galbavy
   <[e-mail]>

** Inclusion of standard header files is reworked by Peter Galbavy
   <[e-mail]>

** Change description from GNU/Linux 2.1.X to GNU/Linux 2.2.X

** If daemon function exists in standard C library use it.

** To generate configure script we upgrade autoconf to 2.13.  To
generate Makefile.in we upgrade automake to 1.4.

** doc/texinfo.tex is added to distribution.

** Update ports/pkg/DESCR description.

** Update doc/zebra.texi.

** logfile FILENAME statement deleted.  Instead of that please use log
file FILENAME.

* Changes in zebra

* Changes in bgpd

** Communication between zebra and bgpd works now.  So if there is
   `router zebra' line in bgpd.conf, selected route is installed
   into kernel routing table.

** Delete all routes which inserted by bgpd when bgpd dies.  If you
want to retain routes even bgpd dies please specify [-r|--retain]
option to bgpd.

** BGP announcement code is reworked.  Now bgpd announce selected
   routes to other peer.

** All output bgp packet is buffered.  It's written to the socket when
   it gets ready.

** Output route-map works now.  You can specify output route-map by:

   neighbor IP_ADDR route-map ROUTE_MAP_NAME out

** New route-map command added.

   set ip nexthop IP_ADDR
   set ipv6 nexthop global IP_ADDR

** Fix bug about unlock of the route_node structure.

** BGP-4+ support is added.  bgpd can listen and speak BGP-4+ packet
specified in RFC2283. You can view IPv6 bgp table by: `show ipv6 bgp'.

** Meny packet overflow check is added.

* Changes in ripd

* Changes in ripngd

* Changes in ospfd

** ospfd work is started by Toshiaki Takada <[e-mail]>.  Now
several files are included in ospfd directory.

** ospf6d codes are merged from Yasuhiro Ohara <[e-mail]>'s
ospfd work.  Now codes are located in ospf6d directory.


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