[nrf fromtree] net: arp: Add support for gratuitous ARP transmission #1665
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… interface The network interface parameter for net_eth_get_vlan_tag() should be the VLAN interface so use the search loop properly. Earlier the main interface could be checked. Add also test cases for this so that we can catch that the func works properly. Signed-off-by: Jukka Rissanen <[email protected]> (cherry picked from commit d40abe8) Signed-off-by: Robert Lubos <[email protected]>
…N one We were missing a helper function that can be used to check whether the given function is the virtual VLAN interface. Signed-off-by: Jukka Rissanen <[email protected]> (cherry picked from commit 07599e3) Signed-off-by: Robert Lubos <[email protected]>
Add support for gratuitous ARP transmission by Zephyr network stack. This allows to prematurely fill the peer ARP table, so there's no need to send an explicit request when peer needs to send an actual packet. The gratuitous ARP is send when the network interface is brought up (joins the network) or a new IP address is added. The gratuitous ARP request is also sent periodically, with a configurable interval time. The gratuitous ARP should also be sent whenever MAC address of the interface is changed, but as Zephyr only allows to do this when interface is down, this is already covered by the first case (interface brought up). Signed-off-by: Robert Lubos <[email protected]> (cherry picked from commit 6551e6f)
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krish2718
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jukkar
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Add support for gratuitous ARP transmission by Zephyr network stack. This allows to prematurely fill the peer ARP table, so there's no need to send an explicit request when peer needs to send an actual packet.
The gratuitous ARP is send when the network interface is brought up (joins the network) or a new IP address is added. The gratuitous ARP request is also sent periodically, with a configurable interval time. The gratuitous ARP should also be sent whenever MAC address of the interface is changed, but as Zephyr only allows to do this when interface is down, this is already covered by the first case (interface brought up).