vrrp: Stop link local VMAC address responging to neighbour solicit #2329
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When an IPv6 VRRP instance using VMAC is in backup state, the link local address configured on the VMAC interface is the same as the link local address on the parent interface of the VMAC. This causes a problem with switches learning the MAC address of the VMAC is now on the backup. This causes packets meant to be sent to the master being sent to the backup. This commit uses nftables/iptables to stop neighbour advertisements for the link local address of the VMAC interface and its parent interface being sent from the VMAC interface. Signed-off-by: Quentin Armitage <quentin@armitage.org.uk>
Commit 81eb41f - "vrrp: Stop link local VMAC address responging to neighbour solicit" caused a build failure with --disable-vmac configure option. This commit resolves the build failure. Signed-off-by: Quentin Armitage <quentin@armitage.org.uk>
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