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internet: (fixes #956) Avoid sending RS when link goes down

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This commit is contained in:
Tom Henderson
2023-09-19 17:05:05 -07:00
committed by Tommaso Pecorella
parent 86cc890d60
commit bceab38aa6
1 changed files with 11 additions and 0 deletions
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11
src/internet/model/icmpv6-l4-protocol.cc
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@@ -1350,6 +1350,17 @@ Icmpv6L4Protocol::SendRS(Ipv6Address src, Ipv6Address dst, Address hardwareAddre
p->AddHeader(llOption);
}
if (!src.IsAny())
{
Ptr<Ipv6L3Protocol> ipv6 = m_node->GetObject<Ipv6L3Protocol>();
if (ipv6->GetInterfaceForAddress(src) == -1)
{
NS_LOG_INFO("Preventing RS from being sent or rescheduled because the source address "
<< src << " has been removed");
return;
}
}
NS_LOG_LOGIC("Send RS (from " << src << " to " << dst << ")");
rs.CalculatePseudoHeaderChecksum(src, dst, p->GetSize() + rs.GetSerializedSize(), PROT_NUMBER);