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Router - VyOS: Difference between revisions
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[https://www.vyos.net/ VyOS] is an Open Source router operating system built on top of Debian Linux.
Rather than having to configure lots of different software packages, everything is
Documentation for VyOS is available here: https://vyos.readthedocs.io/en/latest/
== Hardware ==
* Old [https://www.parkytowers.me.uk/thin/ Thin Clients] on eBay can make cheap routers, as most are fan-less and come with flash storage
* More in the [https://vyos.readthedocs.io/en/latest/appendix/vyos-on-baremetal.html VyOS 'bare metal' documentation]
== Installing ==
== Configuring
This section describes how to configure the LAN interface (eth0) with an IP address and advertise addresses using SLAAC and DHCP.
First, configure addresses on the interface.
We are going to use the first /64 subnet of your IPv6 allocation for the LAN subnet.
<code>xxxx</code> needs to be replaced with your AAISP IPv6 allocation.
<pre>
set interface ethernet eth0 description "LAN"
set interface ethernet eth0 address 192.168.1.1/24
set interface ethernet eth0 address 2001:8b0:xxxx::1/64
</pre>
To configure SLAAC / IPv6 router advertisements enter the following two commands:
<pre>
set interface ethernet eth0 ipv6 router-advert send-advert true
set interface ethernet eth0 ipv6 router-advert prefix 2001:8b0:xxxx::/64
</pre>
Then to configure a DHCP server on the LAN interface:
<pre>
set service dhcp-server shared-network-name LAN authoritative
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 default-router '192.168.1.1'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 dns-server '217.169.20.20'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 dns-server '217.169.20.21'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 domain-name 'example.com'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 lease '86400'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 range 0 start '192.168.1.10'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 range 0 stop '192.168.1.250'
</pre>
== Configuring WAN / PPPoE ==▼
This section configures PPPoE on the WAN interface (eth1).
Replace the <code>user-id</code> and <code>password</code> with your AAISP username and password.
Note that IPv6 has to be explicitly enabled on the PPPoE interface.
<pre>
set interface ethernet eth1 description "WAN"
set interface ethernet eth1 pppoe 0 user-id mxxxx@a.1
set interface ethernet eth1 pppoe 0 password xxxx
set interface ethernet eth1 pppoe 0 mtu 1492
set interface ethernet eth1 pppoe 0 default-route auto
set interface ethernet eth1 pppoe 0 name-server auto
set interface ethernet eth1 pppoe 0 enable-ipv6
set interface ethernet eth1 pppoe 0 ipv6 address autoconf
</pre>
Unlike IPv4, routing for IPv6 isn't enabled automatically when the interface comes up. I had to add a default static route for IPv6.
<pre>
set protocols static interface-route6 ::/0 next-hop-interface pppoe0
</pre>
Finally, set up NAT, so that the private IPv4 addresses on the LAN interface can access the internet:
<pre>
set nat source rule 100 description "NAT for IPv4 on LAN"
set nat source rule 100 outbound-interface 'pppoe0'
set nat source rule 100 source address '192.168.1.0/24'
set nat source rule 100 translation address masquerade
</pre>
▲== Configuring PPPoE ==
== Complete Example Configuration ==▼
* The first network interface (eth0) is connected to the local LAN
▲== Example Configuration ==
* The second network interface (eth1) is connected to a VDSL modem for PPPoE
* IPv4 NAT is configured for LAN devices to access the Internet
* Passwords (***) and placeholders (xxxx) need to be replaced with your details
* No firewall is configured in this example
<pre>
lease 86400
range 0 {
start 192.168.1.
stop 192.168.1.
}
}
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