Cisco ASR 5000 Series User Manual

Personal Stateful Firewall Overview
▀ Supported Features
▄ Cisco ASR 5000 Series Product Overview
OL-22938-02
Land attacks
Jolt attacks
Teardrop attacks — Detected only in downlink direction, i.e. traffic coming from the external network
towards the mobile subscribers
Invalid IP option length
IP-unaligned-timestamp attack — Detected only in downlink direction
Short IP header length
IP checksum errors
IP reassembly failure (downlink)
IP reassembly failure (uplink)
Source router — Detected only in downlink direction
TCP-based Attacks:
Data packets received after RST/FIN
Invalid SEQ number received with RST
Data without connection established
Invalid TCP connection requests
Invalid TCP pre-connection requests
Invalid ACK value (cookie enabled)
Invalid TCP packet length
Short TCP header length
TCP checksum errors
SEQ/ACK out-of-range
TCP null scan attacks
Post connection SYN
No TCP flags set
All TCP flags set
Invalid TCP packets
Flows closed by RST before 3-Way handshake
Flows timed-out in SYN_RCVD1 state
Flows timed-out in SYN_RCVD2 state
TCP-SYN flood attacks — Detected only in downlink direction
FTP bounce attack — Detected only in downlink direction
MIME flood attacks — Detected only in downlink direction
Exceeding reset message threshold
Source port zero
WinNuke attack — Detected only in downlink direction
TCP-window-containment — Detected only in downlink direction

Cisco ASR 5000 Series Specifications

General

Brand	Cisco
Model	ASR 5000 Series
Category	Network Router
Language	English