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Network options ​

Configuration for each network device is calculated from:

  • the general options in config lime network,
  • an (optional) interface specific section relative to that specific network device.

Default values ​

Default values as per /etc/config/lime-defaults

config lime network
	option primary_interface 'eth0'
	option main_ipv4_address '10.%N1.0.0/16'
	option anygw_dhcp_start '2'
	option anygw_dhcp_limit '0'
	option main_ipv6_address 'fd%N1:%N2%N3:%N4%N5::/64'
	list protocols ieee80211s
	list protocols lan
	list protocols anygw
	list protocols batadv:%N1
	list protocols olsr:14
	list protocols olsr6:15
	list protocols olsr2:16
	list protocols babeld:17
	list protocols bmx7:18
	list resolvers 4.2.2.2   # b.resolvers.Level3.net
	list resolvers 141.1.1.1 # cns1.cw.net
	list resolvers 2001:470:20::2 # ordns.he.net
	option bmx7_mtu '1500'
	option bmx7_publish_ownip false
	option bmx7_over_batman false
	option bmx7_pref_gw none
	option bmx7_wifi_rate_max 'auto'
	option bmx7_enable_pki false
	option batadv_orig_interval '2000'
	option batadv_routing_algo 'BATMAN_IV'
	option anygw_mac "aa:aa:aa:%N1:%N2:aa"
	option use_odhcpd false

General options ​

config lime 'network'
	option primary_interface 'eth0'
	option main_ipv4_address '10.%N1.0.0/16'
	option main_ipv6_address 'fd%N1:%N2%N3:%N4%N5::/64'

primary_interface ​

  • Type: string
  • Default: eth0
config lime network
    option primary_interface 'eth0'

The mac address of this device will be used in different places.
An partial list includes:

  • Options parametrized with %Mn
  • Batman-adv soft interfaces use the last 3 bytes from main interface bat0 which is equal to the mac of primary_interface

main_ipv4_address ​

  • Type: <static>|<parametrized>|<network-address>
  • Default: 10.%N1.0.0/16
  • Parameter 1: subnet (required)
  • Parameter 2: node auto-assigned IP parametrization
config lime network
    option main_ipv4_address '10.%N1.0.0/16'

Here you have 4 possibilities:

  • static - 10.0.2.1/16 - set a static IP and the subnet
  • parametrized - 10.%N1.%M5.%M6/16 - Parametrizable with %Mn and %Nn and set the subnet
  • network-address - 10.%N1.0.0/16 - Set a whole network address (not a specific IP) for getting the IP autocompleted in that network with bits from MAC address. this works also with netmasks other than /24 or /16, like 10.0.128.0/17 (but not valid network addresses, for example 192.0.128.0/16 or 192.0.129.0/17 won't get parametrized).
  • network-address - 10.0.128.0/16/17 - Use the second parameter for node IP parametrization. This results in /16 subnet but the IP of the LibreMesh router will be auto-assigned in a /17 range (from 10.0.128.1 to 10.0.255.254).

main_ipv6_address ​

  • Type: string
  • Default: fd%N1:%N2%N3:%N4%N5::/64
  • Parameter 1: subnet (required) default /64
  • Parameter 2: node auto-assigned IP parametrization
config lime network
    option main_ipv4_address '10.%N1.0.0/16'

Parametrizable in the same way as main_ipv4_address.
If used, the IP autocompletion will fill maximum the last 24 bits, so specifying an IP autocompletion range bigger than /104 is not useful.

DNS servers ​

list resolvers ​

  • Type: list
  • Default: 4.2.2.2 141.1.1.1 2001:470:20::2
config lime network
    list resolvers 4.2.2.2                              # b.resolvers.Level3.net  
    list resolvers 141.1.1.1                            # cns1.cw.net 
    list resolvers 2001:470:20::2                       # ordns.he.net

DNS servers node will use. The list is ordered from top to bottom.
Set every entry empty for using the upstream (ISP) DNS server

config lime network
    list resolvers ''