Below is a good tuturial on setting up quagga, taken from:

https://wiki.ubuntu.com/JonathanFerguson/Quagga

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Install the Quagga routing daemon:
sce-import quagga

Enable IPv4 and IPv6 Forwarding:
echo "net.ipv4.conf.all.forwarding=1" | sudo tee -a /etc/sysctl.conf
echo "net.ipv4.conf.default.forwarding=1" | sudo tee -a /etc/sysctl.conf
sed 's/#net.ipv6.conf.all.forwarding=1/net.ipv6.conf.all.forwarding=1/g' /etc/sysctl.conf | sudo tee /etc/sysctl.conf
echo "net.ipv6.conf.default.forwarding=1" | sudo tee -a /etc/sysctl.conf
sudo sysctl -p

Create the configuration files:
sudo nano /etc/quagga/babeld.conf
sudo nano /etc/quagga/bgpd.conf
sudo nano /etc/quagga/isisd.conf
sudo nano /etc/quagga/ospf6d.conf
sudo nano /etc/quagga/ospfd.conf
sudo nano /etc/quagga/ripd.conf
sudo nano /etc/quagga/ripngd.conf
sudo nano /etc/quagga/vtysh.conf
sudo nano /etc/quagga/zebra.conf

Or copy the examples contained in the quagga or quagga-core package,
found in either:
/usr/share/doc/quagga/examples/ 

or

/usr/share/doc/quagga-core/examples/

to the /etc/quagga/ directory, removing the .sample suffix from them. 


Change the owner and the mode of the configuration files:
sudo chown quagga:quagga /etc/quagga/babeld.conf && sudo chmod 640 /etc/quagga/babeld.conf
sudo chown quagga:quagga /etc/quagga/bgpd.conf && sudo chmod 640 /etc/quagga/bgpd.conf
sudo chown quagga:quagga /etc/quagga/isisd.conf && sudo chmod 640 /etc/quagga/isisd.conf
sudo chown quagga:quagga /etc/quagga/ospf6d.conf && sudo chmod 640 /etc/quagga/ospf6d.conf
sudo chown quagga:quagga /etc/quagga/ospfd.conf && sudo chmod 640 /etc/quagga/ospfd.conf
sudo chown quagga:quagga /etc/quagga/ripd.conf && sudo chmod 640 /etc/quagga/ripd.conf
sudo chown quagga:quagga /etc/quagga/ripngd.conf && sudo chmod 640 /etc/quagga/ripngd.conf
sudo chown quagga:quaggavty /etc/quagga/vtysh.conf && sudo chmod 660 /etc/quagga/vtysh.conf
sudo chown quagga:quagga /etc/quagga/zebra.conf && sudo chmod 640 /etc/quagga/zebra.conf

Edit which routing protocols are to run:
sudo nano /etc/quagga/daemons
zebra=yes
bgpd=yes
ospfd=yes
ospf6d=yes
ripd=yes
ripngd=yes
isisd=yes
babeld=yes

Edit telnet access and the retaining of routes over restarts:
sudo nano /etc/quagga/debian.conf
vtysh_enable=yes
zebra_options=" --daemon -A 127.0.0.1 -P 2601 -u quagga -g quagga"
bgpd_options=" --daemon -A 127.0.0.1 -P 2605 -u quagga -g quagga --retain -p 179"
ospfd_options=" --daemon -A 127.0.0.1 -P 2604 -u quagga -g quagga"
ospf6d_options=" --daemon -A ::1 -P 2606 -u quagga -g quagga"
ripd_options=" --daemon -A 127.0.0.1 -P 2602 -u quagga -g quagga"
ripngd_options=" --daemon -A ::1 -P 2603 -u quagga -g quagga"
isisd_options=" --daemon -A 127.0.0.1 -P 2608 -u quagga -g quagga"
babeld_options=" --daemon -A 127.0.0.1 -P 2609 -u quagga -g quagga"

Restart the daemon:
sudo /etc/init.d/quagga restart

Be sure to include /etc/quagga and /etc/sysctl.conf in your backup.