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radvd: skip advertisments when no prefixes are configured

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This commit is contained in:
Michael Stapelberg 2018-06-08 16:50:27 +02:00
parent 6782668f23
commit 4baac19e13
1 changed files with 3 additions and 0 deletions
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3
internal/radvd/radvd.go
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@ -153,6 +153,9 @@ func (o rdnss) Marshal() layers.ICMPv6Option {
} }
func (s *Server) sendAdvertisement(addr net.Addr) error { func (s *Server) sendAdvertisement(addr net.Addr) error {
if s.prefixes == nil {
return nil // nothing to do
}
if addr == nil { if addr == nil {
addr = &net.IPAddr{net.IPv6linklocalallnodes, s.iface.Name} addr = &net.IPAddr{net.IPv6linklocalallnodes, s.iface.Name}
} }