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DhcpServer: sending correct siaddr for nak responses.

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This commit is contained in:
Shreyas Zare
2020-09-26 20:06:01 +05:30
parent cbcca55b36
commit 2b5dffb4b4
1 changed files with 6 additions and 6 deletions
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12
DnsServerCore/Dhcp/DhcpServer.cs
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@@ -338,14 +338,14 @@ namespace DnsServerCore.Dhcp
{
//no existing lease or offer available for client
//send nak
return new DhcpMessage(request, IPAddress.Any, serverIdentifierAddress, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
return new DhcpMessage(request, IPAddress.Any, IPAddress.Any, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
}
if (!request.ClientIpAddress.Equals(leaseOffer.Address))
{
//client ip is incorrect
//send nak
return new DhcpMessage(request, IPAddress.Any, serverIdentifierAddress, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
return new DhcpMessage(request, IPAddress.Any, IPAddress.Any, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
}
}
else
@@ -357,14 +357,14 @@ namespace DnsServerCore.Dhcp
{
//no existing lease or offer available for client
//send nak
return new DhcpMessage(request, IPAddress.Any, serverIdentifierAddress, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
return new DhcpMessage(request, IPAddress.Any, IPAddress.Any, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
}
if (!request.RequestedIpAddress.Address.Equals(leaseOffer.Address))
{
//the client's notion of its IP address is not correct - RFC 2131
//send nak
return new DhcpMessage(request, IPAddress.Any, serverIdentifierAddress, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
return new DhcpMessage(request, IPAddress.Any, IPAddress.Any, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
}
}
}
@@ -383,14 +383,14 @@ namespace DnsServerCore.Dhcp
{
//no existing lease or offer available for client
//send nak
return new DhcpMessage(request, IPAddress.Any, serverIdentifierAddress, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
return new DhcpMessage(request, IPAddress.Any, IPAddress.Any, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
}
if (!request.RequestedIpAddress.Address.Equals(leaseOffer.Address))
{
//requested ip is incorrect
//send nak
return new DhcpMessage(request, IPAddress.Any, serverIdentifierAddress, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
return new DhcpMessage(request, IPAddress.Any, IPAddress.Any, new DhcpOption[] { new DhcpMessageTypeOption(DhcpMessageType.Nak), new ServerIdentifierOption(scope.InterfaceAddress), DhcpOption.CreateEndOption() });
}
}