diff options
Diffstat (limited to 'pkg/tcpip/stack/route.go')
| -rw-r--r-- | pkg/tcpip/stack/route.go | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/pkg/tcpip/stack/route.go b/pkg/tcpip/stack/route.go index 12f5efba5..e4f10cfa1 100644 --- a/pkg/tcpip/stack/route.go +++ b/pkg/tcpip/stack/route.go @@ -40,12 +40,13 @@ type Route struct { // makeRoute initializes a new route. It takes ownership of the provided // reference to a network endpoint. -func makeRoute(netProto tcpip.NetworkProtocolNumber, localAddr, remoteAddr tcpip.Address, ref *referencedNetworkEndpoint) Route { +func makeRoute(netProto tcpip.NetworkProtocolNumber, localAddr, remoteAddr tcpip.Address, localLinkAddr tcpip.LinkAddress, ref *referencedNetworkEndpoint) Route { return Route{ - NetProto: netProto, - LocalAddress: localAddr, - RemoteAddress: remoteAddr, - ref: ref, + NetProto: netProto, + LocalAddress: localAddr, + LocalLinkAddress: localLinkAddr, + RemoteAddress: remoteAddr, + ref: ref, } } @@ -82,6 +83,11 @@ func (r *Route) Resolve(waker *sleep.Waker) *tcpip.Error { nextAddr := r.NextHop if nextAddr == "" { + // Local link address is already known. + if r.RemoteAddress == r.LocalAddress { + r.RemoteLinkAddress = r.LocalLinkAddress + return nil + } nextAddr = r.RemoteAddress } linkAddr, err := r.ref.linkCache.GetLinkAddress(r.ref.nic.ID(), nextAddr, r.LocalAddress, r.NetProto, waker) |