Threat Level: green Handler on Duty: Jim Clausing

SANS ISC: Port 9 (tcp/udp) Attack Activity Port 9 (tcp/udp) Attack Activity


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Port Information
Protocol Service Name
tcp discard Discard
udp discard Discard
Top IPs Scanning
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204.93.154.215 (10)89.248.165.118 (17)
89.248.165.118 (8)106.75.61.203 (14)
190.210.166.140 (5)204.93.154.215 (12)
104.152.52.26 (3)23.148.145.204 (10)
193.163.125.74 (1)60.205.136.4 (8)
104.152.52.35 (1)47.95.157.24 (8)
86.42.230.246 (1)106.75.22.49 (8)
104.152.52.18 (1)172.105.89.161 (7)
193.163.125.161 (1)204.93.180.6 (6)
193.163.125.136 (1)47.95.157.236 (5)
User Comments
Submitted By Date
Comment
George Assai 2003-11-02 19:25:33
This RFC specifies a standard for the ARPA Internet community. Hosts on the ARPA Internet that choose to implement a Discard Protocol are expected to adopt and implement this standard. A useful debugging and measurement tool is a discard service. A discard service simply throws away any data it receives. >>TCP Based Discard Service One discard service is defined as a connection based application on TCP. A server listens for TCP connections on TCP port 9. Once a connection is established any data received is thrown away. No response is sent. This continues until the calling user terminates the connection. >>UDP Based Discard Service Another discard service is defined as a datagram based application on UDP. A server listens for UDP datagrams on UDP port 9. When a datagram is received, it is thrown away. No response is sent.
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