Alaxala AX6300S series, Руководство пользователя программного обеспечения

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9. DHCP Snooping
266
2105 NOTICE Discard of packets occurred by a
reception rate limit of DHCP packets and
ARP packets.
[Meaning]
Packets were discarded due to the reception rate
limit for DHCP packets and ARP packets.
[Explanation of message variables]
None.
[Action]
Review the network configuration. If there is
no problem in the configuration, then this might
have been caused by an attack.
2201 NOTICE DHCP server packets were received at an
untrust port(
<nif no.> / <port no.> / <vlan
id> / <mac address> / <ip address> ).
[Meaning]
An invalid DHCP server was detected.
This message is output once every five minutes
on a port-by-port basis.
[Explanation of message variables]
<nif no.>
/
<port no.>
/
<vlan id>
/
<mac
address>
/
<ip address> : Indicates DHCP
server information.
<nif no.> : Indicates the NIF number.
<port no.> : Indicates the port number.
<vlan id> : Indicates the VLAN ID.
<mac address> : Indicates the MAC address.
<ip address> : Indicates the IP address.
[Action]
Check the connected device.
2202 NOTICE Lease release was received from the
client who isn't in binding( <nif no.> /
<port no.> / <vlan id> / <mac address> /
<ip address> ).
[Meaning]
Invalid lease release was detected.
This message is output once every five minutes
on a port-by-port basis.
[Explanation of message variables]
<nif no.>
/
<port no.>
/
<vlan id>
/
<mac
address>
/
<ip address> : Indicates DHCP
client terminal information.
<nif no.> : Indicates the NIF number.
<port no.> : Indicates the port number.
<vlan id> : Indicates the VLAN ID.
<mac address> : Indicates the MAC address.
<ip address> : Indicates the IP address.
[Action]
If this occurs frequently, it might have been
caused by an attack. Check the connected
devices.
2203 NOTICE DHCP direct request was received from
the client who isn't in binding(
<nif no.> /
<port no.> / <vlan id> / <mac address> /
<ip address> ).
[Meaning]
An invalid DHCP request was detected.
This message is output once every five minutes
on a port-by-port basis.
[Explanation of message variables]
<nif no.>
/
<port no.>
/
<vlan id>
/
<mac
address>
/
<ip address> : Indicates DHCP
client terminal information.
<nif no.> : Indicates the NIF number.
<port no.> : Indicates the port number.
<vlan id> : Indicates the VLAN ID.
<mac address> : Indicates the MAC address.
<ip address> : Indicates the IP address.
[Action]
If this occurs frequently, it might have been
caused by an attack. Check the connected
devices.
Message ID Level Message text Description