29 lines
1.4 KiB
Markdown
29 lines
1.4 KiB
Markdown
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gluon-radv-filterd
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==================
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This package drops all incoming router advertisements except for the
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default router with the best metric according to B.A.T.M.A.N. advanced.
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Note that advertisements originating from the node itself (for example
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via gluon-radvd) are not affected and considered at all.
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"Best" router
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-------------
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The best router is determined by the TQ that is reported for its originator by
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B.A.T.M.A.N. advanced. If, for some reason, another gateway with a better TQ
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appears or an existing gateway increases its TQ above that of the chosen
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gateway, the chosen gateway will remain selected until the better gateway has a
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TQ value at least X higher than the selected gateway. This is called
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hysteresis, and X can be specified on the commandline/via UCI/the site.conf and
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defaults to 20 (just as for the IPv4 gateway selection feature built into
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B.A.T.M.A.N. advanced).
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"Local" routers
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---------------
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The package has functionality to assign "local" routers, i.e. those connected
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via cable or WLAN instead of via the mesh (technically: appearing in the
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`transtable_local`), a fake TQ of 512 so that they are always preferred.
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However, if used together with the `gluon-ebtables-filter-ra-dhcp` package,
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these router advertisements are filtered anyway and reach neither the node nor
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any other client. You currently have to disable the package or insert custom
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ebtables rules in order to use local routers.
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