User's Manual

Appendix I Log Descriptions
P-793H User’s Guide
416
ip spoofing - WAN [TCP |
UDP | IGMP | ESP | GRE |
OSPF]
The firewall detected an IP spoofing attack on the WAN port.
ip spoofing - WAN ICMP
(type:%d, code:%d)
The firewall detected an ICMP IP spoofing attack on the WAN
port. For type and code details, see Table 167 on page 422.
icmp echo: ICMP (type:%d,
code:%d)
The firewall detected an ICMP echo attack. For type and code
details, see Table 167 on page 422.
syn flood TCP The firewall detected a TCP syn flood attack.
ports scan TCP The firewall detected a TCP port scan attack.
teardrop TCP The firewall detected a TCP teardrop attack.
teardrop UDP The firewall detected an UDP teardrop attack.
teardrop ICMP (type:%d,
code:%d)
The firewall detected an ICMP teardrop attack. For type and code
details, see Table 167 on page 422.
illegal command TCP The firewall detected a TCP illegal command attack.
NetBIOS TCP The firewall detected a TCP NetBIOS attack.
ip spoofing - no routing
entry [TCP | UDP | IGMP |
ESP | GRE | OSPF]
The firewall classified a packet with no source routing entry as an
IP spoofing attack.
ip spoofing - no routing
entry ICMP (type:%d,
code:%d)
The firewall classified an ICMP packet with no source routing
entry as an IP spoofing attack.
vulnerability ICMP
(type:%d, code:%d)
The firewall detected an ICMP vulnerability attack. For type and
code details, see Table 167 on page 422.
traceroute ICMP (type:%d,
code:%d)
The firewall detected an ICMP traceroute attack. For type and
code details, see Table 167 on page 422.
Table 161 IPSec Logs
LOG MESSAGE DESCRIPTION
Discard REPLAY packet The router received and discarded a packet with an incorrect
sequence number.
Inbound packet
authentication failed
The router received a packet that has been altered. A third party
may have altered or tampered with the packet.
Receive IPSec packet,
but no corresponding
tunnel exists
The router dropped an inbound packet for which SPI could not find a
corresponding phase 2 SA.
Rule <%d> idle time
out, disconnect
The router dropped a connection that had outbound traffic and no
inbound traffic for a certain time period. You can use the "ipsec timer
chk_conn" CI command to set the time period. The default value is 2
minutes.
WAN IP changed to <IP> The router dropped all connections with the “MyIP” configured as
“0.0.0.0” when the WAN IP address changed.
Table 160 Attack Logs (continued)
LOG MESSAGE DESCRIPTION