This document outlines the installation and configuration of Quagga with route multipath on a Linux system running Ubuntu 17.10. It includes details on necessary system settings, file permissions, and the setup of relevant configuration files for Quagga components. The document also covers enabling IP forwarding and adjusting network configurations for optimal performance.

1. Quagga with ROUTE_MULTIPATH
2018/02/11 SAKURA Internet, Inc. Research Center SR / Naoto MATSUMOTO
(C) Copyright 1996-2017 SAKURA Internet Inc

2. Quagga with ROUTE_MULTIPATH (memo)
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# uname -sr; cat /etc/lsb-release
Linux 4.13.0-21-generic
DISTRIB_DESCRIPTION="Ubuntu 17.10"
# grep ROUTE_MULTIPATH /usr/src/*/.config
CONFIG_IP_ROUTE_MULTIPATH=y
# apt-get install -y quagga traceroute
# vi /etc/sysctl.conf
net.ipv4.conf.all.forwarding=1
net.ipv4.fib_multipath_hash_policy = 1
net.ipv4.conf.all.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.default.arp_filter = 1
net.ipv6.conf.all.forwarding=1
net.ipv6.route.max_size = 32768
net.ipv6.xfrm6_gc_thresh = 32768
# touch /etc/quagga/zebra.conf
# touch /etc/quagga/ospfd.conf
# touch /etc/quagga/ospf6d.conf
# chown quagga.quaggavty /etc/quagga/*.conf
# chmod 640 /etc/quagga/*.conf
# ufw disable
# vi /etc/quagga/daemons
zebra=yes
ospfd=yes
ospf6d=yes
# echo VTYSH_PAGER=more >> /etc/environment
# sync; sync; sync; reboot
# vtysh
Quagga with ROUTE_MULTIPATH