quagga

Quagga is a routing software suite, providing implementations of OSPFv2, RIP v1 and v2, RIPv3 and BGPv4, OSPFv3 for Unix platforms, particularly FreeBSD, Linux, Solaris and NetBSD. Quagga is a fork of GNU Zebra which was developed by Kunihiro Ishiguro. The Quagga tree aims to build a more involved community around Quagga than the current centralised model of GNU Zebra.

The Quagga architecture consists of a core daemon:

zebra

Which acts as an abstraction layer to the underlying Unix kernel and presents the Zserv API over a Unix or TCP stream to Quagga clients. It is these Zserv clients which typically implement a routing protocol and communicate routing updates to the zebra daemon. Existing Zserv clients are:

ospfd
implementing OSPFv2
ripd
implementing RIP v1 and V2
ospf6d
implementing OSPFv3 (IPv6)
ripngd
implementing RIP v3 (IPv6)
bgpd
implementing BGPv4+ (including address family support for multicast and IPv6)

Additionally, the Quagga architecture has a rich development library to facilitate the implementation of protocol/client daemons, coherent in configuration and administrative behaviour.

Quagga daemons are each configurable via a network accessible CLI (called a 'vty'). The CLI follows a style similar to that of other routing software. There is an additional tool included with Quagga called 'vtysh', which acts as a single cohesive front-end to all the daemons, allowing one to administer nearly all aspects of the various Quagga daemons in one place.

What is new in this release:

• The primary focus of this release is a fix of a SEGV regression in ospfd, which was introduced in 0.99.19.
• It also features a series of minor improvements, including better RFC compliance in bgpd, better support of FreeBSD, and some enhancements to isisd.

What is new in version 0.99.19:

• This version provides security fixes which address assorted vulnerabilities in bgpd, ospfd, and ospf6d (CVE-2011-3323, CVE-2011-3324, CVE-2011-3325, CVE-2011-3326, and CVE-2011-3327).

What is new in version 0.99.18:

• Numerous bugs were fixed.

What is new in version 0.99.16:

• bgpd:
• use monotonic clock for time of day
• code cleanup
• compile warnings cleanup
• work around warning in assegments_parse()
• ospfd:
• fix debug messages that were masked by DISCARD_LSA
• remove unneeded memset from a very hot function
• VTY strings cleanup
• comment out unused function
• make local functions static
• enable more OSPF cost command aliases
• lib:
• fix memory logging
• make some structures constant
• move check_bit into prefix common code
• fix warning on little endian
• make match functions take const args
• remove unused function: route_dump_node()
• log source of vty connections (bug #566)
• zebra:
• change router-id selection algo
• deal with irdp compile warnings
• cleanup RIB meta queue code
• fix more warnings in rtadv
• fix more compiler warnings
• remove unused function to fix warning
• handle RTF_CLONING removal from FreeBSD 8.0
• fix argument reference in strncpy() call for BSD
• fix RIB debug message for IPv6
• make declaration const in rtm_flag_dump()
• fix router advertisements for non-Ethernet link layer addresses
• ospf6d:
• remove dead code
• fix warnings from recent prefix bit commit
• review LSA sequence number comparison
• fix LSA locking in ospf6_new_ls_id()
• other:
• ripd: fix compiler warnings
• ripngd: compiler warnings cleanup
• isisd: fix --enable-isis-topology for 64-bit Linux
• isisd: fix BPF ioctl() calls, treat "true" and "false" as reserved configure: fix spelling
• configure: fix HAVE_CLOCK_MONOTONIC spelling

What is new in version 0.99.15:

• This release fixes several bugs in the BGP and OSPF code. In particular, some notable regressions in ospfd and ospf6d were addressed. This release should be considered a 1.0.0 release candidate.

What is new in version 0.99.14:

• This release contains a regression fix for ospf6d, various small fixes and some hopefully very significant bgpd stability fixes.
• This release should be considered a 1.0.0 release candidate. Please test this release as widely as possible.

What is new in version 0.99.12:

• bgpd:
• Fix bgp ipv4/ipv6 accept handling
• [bgpd] AS4 bugfix by Chris Caputo
• [bgpd] Add 'show bgp views' command
• [bgpd] Allow accepted peers to progress even if realpeer is in Connect
• ospfd:
• [lib] Move type cast in Fletcher checksum
• [lib] Switch Fletcher checksum back to old ospfd version
• Justified OSPF cost function names and added support for:
• ospf cost A.B.C.D
• no ospf cost
• library:
• [lib] Fix timer precision.
• [lib] fix missing sockunion_normalise_mapped
• vtysh:
• [vtysh] Add commands from zebra_routemap.c to vtysh
• misc:
• [build] tools/multiple-bgpd.sh should be in 'make dist'

What is new in version 0.99.11:

• This release was intentionally prepared as a release candidate with most regressions addressed.
• Users of all 0.99.x and 0.98.x branches are advised to upgrade to 0.99.11, so the next stable branch can be started as early as possible.
• Particular changes include initial bgpd TCP-MD5 support (only for IPv4 at the moment), crash fixes in bgpd, another RIB-FIB syncing attempt in the zebra daemon, and an OpenSolaris SFW update.