|:||It is only skeleton of the article. It is need to full translate from russian.|
- Main uplink – connection to main internet provider.
- Spare link – connection to router of the friendly organisation.
- Main condition – subnets of the local network, Main uplink and Spare link do not overlap each other.
If you are installing a trunk version, it's recommended to install also the web user interface LuCI for ease of operations. Current version should have the web user interface already installed and enabled by default.
Next to be installed is the luci-app-miltiwan package that in turn will pull also the dependencies like the required multiwan.
LuCI: fill all required fields on Network → Interfaces → WAN and click
Save & Apply
UCI: edit a file
config interface 'wan' option ifname 'eth1' option proto 'static' option ipaddr '198.51.100.195' option netmask '255.255.255.128' option gateway '198.51.100.129' option dns '192.0.2.160 22.214.171.124 192.0.2.190'And apply changes:
It is recommends specify some public DNS in addition to DNS of provider "Main aplink". It is need to avoid failures of resolving when Main uplink will down.
First, it is need exlude one port from existing "LAN" VLAN. This VLAN has number "1". Second, need create new VLAN (with number "2" or another less or equal 4096) and include into new VLAN freed port with untagged mode and Port 5 ("CPU port") in the tagged mode.
In UCI: change file
config switch_vlan option device 'rtl8366s' option vlan '1' option ports '0 1 2 3 5t'with
config switch_vlan option device 'rtl8366s' option vlan '1' option ports '0 1 2 5t' config switch_vlan option device 'rtl8366s' option vlan '2' option ports '3 5t'After
/etc/config/networkis changes it is need to run:
/etc/init.d/network restartfor apply changes.
It is need assign virtual interface to phisical. LuCI: Network → Interfaces:
- Click Add New Interface
- Write name WWAN
- Select phisical interface "VLAN interface: eth0.2"
- In a line Protocol of the new interface select DHCP Client (or required by Spare link)
- Click Submit
UCI: Add following lines into
config interface 'wwan' option ifname 'eth0.2' option proto 'dhcp'
Set up firewall parameters for new interface:
- LuCI: Network → Interfaces → WWAN → Firewall settings select a zone "
In LuCI: Network → Multi-WAN
- Set Failover Traffic Destination to another interface:
wwaninterface section and
- Best solution for DNS: insert DNS server of provider of link and one of public save DNS server (for example, Google's public DNS servers)
- A parameter Health Monitor ICMP Host(s) should be set with different save servers but not servers of provider of links (because link may be up but internet are down)
Next assign policy for multiwan:
- Default Route:
(Main uplink should use for all traffic if it up, and Spare link only in case when Main uplink are down.
Last remove unneeded rules from Multi-WAN Traffic Rules and enable multiwan.
Don't forget click Save & Apply.
In UCI need change
config multiwan 'config' option enabled '1' option default_route 'wan' config interface 'wan' option weight '10' option health_interval '10' option timeout '3' option health_fail_retries '3' option health_recovery_retries '5' option dns 'auto' option icmp_hosts '126.96.36.199' option failover_to 'wwan' config interface 'wwan' option weight '10' option health_interval '10' option timeout '3' option health_fail_retries '3' option health_recovery_retries '5' option dns 'auto' option icmp_hosts '188.8.131.52' option failover_to 'wan'Next apply changes:
LuCI: Network → DHCP and DNS → General settings. In section DNS forwardings enumerate DNS servers of both links and, for better work, one or two public DNS servers.
UCI: enumerate DNS servers in lines
list server … in section
config dnsmasq of file
/etc/config/dhcp, for example:
config dnsmasq list server '184.108.40.206' list server '220.127.116.11' list server '192.0.2.160' list server '192.0.2.190' …
And apply changes:
doc/howto/multiwan.failower.txt · Last modified: 2014/02/26 12:32 by uqbar