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51 lines
1.9 KiB
Plaintext
51 lines
1.9 KiB
Plaintext
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Network configuration in buildroot-ng
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The network configuration in buildroot-ng is stored in /etc/config/network
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and is divided into interface configurations.
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Each interface configuration either refers directly to an ethernet/wifi
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interface (eth0, wl0, ..) or to a bridge containing multiple interfaces.
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It looks like this:
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config interface "lan"
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option ifname "eth0"
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option proto "static"
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option ipaddr "192.168.1.1"
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option netmask "255.255.255.0"
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option gateway "192.168.1.254"
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option dns "192.168.1.254"
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"ifname" specifies the Linux interface name.
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If you want to use bridging on one or more interfaces, set "ifname" to a list
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of interfaces and add:
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option type "bridge"
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It is possible to use VLAN tagging on an interface simply by adding the VLAN IDs
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to it, e.g. "eth0.1". These can be nested as well.
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This sets up a simple static configuration for eth0. "proto" specifies the
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'protocol' used for the interface. The default image usually provides 'none'
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'static', 'dhcp' and 'pppoe'. Others can be added by installing additional
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packages.
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When using the 'static' method like in the example, the options "ipaddr" and
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"netmask" are mandatory, while "gateway" and "dns" are optional.
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DHCP currently only accepts "ipaddr" (IP address to request from the server)
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and "hostname" (client hostname identify as) - both are optional.
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PPP based protocols (pppoe, pptp, ...) accept these options:
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username:
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The PPP username (usually with PAP authentication)
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password:
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The PPP password
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keepalive:
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Ping the PPP server (using LCP). The value of this option
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specifies the maximum number of failed pings before reconnecting.
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The ping interval defaults to 5, but can be changed by appending
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",<interval>" to the keepalive value
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demand:
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Use Dial on Demand (value specifies the maximum idle time)
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For all protocol types, you can also specify the MTU by using the "mtu" option.
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