Cisco Cisco Packet Data Gateway (PDG) Guia De Resolução De Problemas
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Cisco ASR 5000 Series Statistics and Counters Reference ▄
OL-22990-02
Field
Description
Invalid TCP Packet Length
Total number of TCP packets with invalid length received by Stateful
Firewall.
Firewall.
Packets with Short TCP Header Length
Total number of TCP packets with invalid/short header length received by
Stateful Firewall.
Stateful Firewall.
Packets Dropped due to TCP Checksum Errors
Total number of packets dropped due to TCP Checksum error.
Packets with SEQ/ACK Out-of-range
Total number of packets with out of range SEQ/ACK.
TCP Null Scan Attacks
Total number of TCP Null Scan attacks detected by Stateful Firewall.
Post Connection SYN
Total number of Post Connection SYN attacks detected by Stateful Firewall.
Unable to Send SYN Packet
Total number of attempts detected by Stateful Firewall when node failed to
send SYN packets.
send SYN packets.
Send Final ACK to Target Failed
Total number of attempts detected by Stateful Firewall when node failed to
send Final ACK packet to target node.
send Final ACK packet to target node.
Invalid TCP Packet: SYN-ACK Expected
Total number of invalid TCP packets received by Stateful Firewall in place of
SYN+ACK packets.
SYN+ACK packets.
No TCP Flags Set
Total number of TCP packets received with no flags set.
All TCP Flags Set
Total number of TCP flags received with all flags set.
Invalid TCP Packets
Total number of invalid TCP packets including all type of errors and attacks
received by Stateful Firewall.
received by Stateful Firewall.
Flows Closed by RST before 3-Way Handshake
Total number flows closed by RST (reset) message before the 3-way
handshaking.
handshaking.
Flows Timed-out in SYN_RCVD1 State
Total number of flows timed out in SYN_RCVD1 state.
Flows Timed-out in SYN_RCVD2 State
Total number of flows timed out in SYN_RCVD2 state.
Flows Terminated due to WinNuke Attack
Total number of flows terminated due to WinNuke attacks by Stateful
Firewall.
Firewall.
TCP-SYN Flood Attacks
Total number of TCP-SYN Flood attacks detected by Stateful Firewall.
Packets Dropped on TCP-SYN Flood Attack
Total number of packets dropped by Stateful Firewall in TCP-SYN Flood
attacks.
attacks.
FTP-Bounce Attacks
Total number of FTP-Bounce attacks detected by Stateful Firewall.
Mime-Flood Attacks
Total number of Mime-Flood attacks detected by Stateful Firewall.
Proxy Handshakes Completed
Total number of times proxy handshake was completed.
Packets Dropped during Proxy Handshake
Total number of packets dropped during proxy handshake.
UDP Stats:
Invalid UDP Echo Response
Total number of invalid UDP echo responses.
Invalid UDP Packet Length
Total number of invalid UDP packet length.
Packets Dropped due to UDP Checksum Errors
Total number of packets dropped due to UDP Checksum errors.
Packets with Short UDP Header Length
Total number of packets with short UDP header length.