2.19. DHCPV6SERVER

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2.19. DHCPV6SERVER

These log messages refer to the DHCPV6SERVER (DHCPv6 Server Events) category.

2.19.1. client_id_missing (ID: 07400001)

Default Severity: WARNING
Log Message: Client ID option missing in received message.
Explanation: The received packet is missing vital information.
Firewall Action: drop
Recommended Action: Investigate what client implementation is being used.
Revision: 1
Context Parameters: Packet Buffer

2.19.2. server_id_missing (ID: 07400002)

Default Severity: WARNING
Log Message: Server ID option missing in received message.
Explanation: The received packet is missing vital information.
Firewall Action: drop
Recommended Action: Investigate what client implementation is being used.
Revision: 1
Context Parameters: Packet Buffer

2.19.3. client_id_unexpected (ID: 07400003)

Default Severity: WARNING
Log Message: Unexpected Client ID option in received message.
Explanation: The received message contains unexpected information.
Firewall Action: drop
Recommended Action: Investigate what client implementation is being used. Dropping.
Revision: 1
Context Parameters: Packet Buffer

2.19.4. server_id_unexpected (ID: 07400004)

Default Severity: WARNING
Log Message: Unexpected Server ID option in received message.
Explanation: The received message contains unexpected information.
Firewall Action: drop
Recommended Action: Investigate what client implementation is being used. Dropping.
Revision: 1
Context Parameters: Packet Buffer

2.19.5. unable_to_send_response (ID: 07400005)

Default Severity: WARNING
Log Message: Failed to get buffer for reply message.
Explanation: Unable to get a buffer for sending.
Firewall Action: None
Recommended Action: Check buffer consumption.
Revision: 1

2.19.6. sending_reply (ID: 07400006)

Default Severity: NOTICE
Log Message: Received SOLICIT with Rapid Commit option from client <client_hw> on <iface>. Sending IP offer <offer_ip>.
Explanation: Received Solicit message with Rapid Commit option from a client.
Firewall Action: None
Recommended Action: None
Revision: 1
Parameters: client_hw
iface
offer_ip

2.19.7. sending_reply (ID: 07400007)

Default Severity: NOTICE
Log Message: Received REQUEST from client <client_hw> on <iface>. Sending IP offer <offer_ip>.
Explanation: Received Request message from a client.
Firewall Action: None
Recommended Action: None
Revision: 1
Parameters: client_hw
iface
offer_ip

2.19.8. client_renewed (ID: 07400008)

Default Severity: NOTICE
Log Message: Client <client_hw> on <iface> renewed IP <client_ip>.
Explanation: Client successfully renewed its address lease.
Firewall Action: renew
Recommended Action: None
Revision: 1
Parameters: client_hw
iface
client_ip

2.19.9. client_rebound (ID: 07400009)

Default Severity: NOTICE
Log Message: Client <client_hw> on <iface> renewed IP <client_ip>.
Explanation: Client successfully rebound its address lease.
Firewall Action: rebind
Recommended Action: None
Revision: 1
Parameters: client_hw
iface
client_ip

2.19.10. lease_timeout (ID: 07400010)

Default Severity: NOTICE
Log Message: Lease for IP <client_ip> timed out.
Explanation: A client lease wasn't renewed and timed out.
Firewall Action: lease_inactive
Recommended Action: None
Revision: 1
Parameters: client_ip
Context Parameters: Rule Name

2.19.11. pool_depleted (ID: 07400011)

Default Severity: WARNING
Log Message: All IPs in the pool are now in use. Request for new IP address cannot be fulfilled.
Explanation: A request for new IP address cannot be fulfilled since all addresses are in use.
Firewall Action: None
Recommended Action: Extend the pool to support more IP addresses.
Revision: 1
Context Parameters: Rule Name

2.19.12. bad_udp_checksum (ID: 07400012)

Default Severity: WARNING
Log Message: Received DHCPv6 packet with bad UDP checksum. Dropping.
Explanation: Received DHCPv6 packet with bad UDP checksum.
Firewall Action: drop
Recommended Action: Check network equipment for errors.
Revision: 1
Context Parameters: Packet Buffer

2.19.13. dhcpv6_packet_too_small (ID: 07400013)

Default Severity: WARNING
Log Message: Received DHCPv6 packet which is smaller than the minimum allowed bytes. Dropping.
Explanation: Received a DHCPv6 packet which is smaller than the minimum allowed bytes.
Firewall Action: drop
Recommended Action: Investigate what client implementation is being used.
Revision: 2
Context Parameters: Packet Buffer

2.19.14. dhcpv6_faulty_length (ID: 07400014)

Default Severity: WARNING
Log Message: Received DHCPv6 packet with faulty length. Dropping.
Explanation: Received a DHCPv6 packet with mismatching lengths calculated from IP- and UDP-layers.
Firewall Action: drop
Recommended Action: Investigate what client implementation is being used.
Revision: 1
Context Parameters: Packet Buffer

2.19.15. invalid_options_length (ID: 07400015)

Default Severity: WARNING
Log Message: Received DHCPv6 packet with faulty options size. Dropping.
Explanation: Received a DHCPv6 packet with unexpected option sizes.
Firewall Action: drop
Recommended Action: Investigate what client implementation is being used.
Revision: 1
Context Parameters: Packet Buffer

2.19.16. lease_db_successfully_saved (ID: 07400016)

Default Severity: NOTICE
Log Message: Lease database was successfully auto saved to disk
Explanation: The lease database was successfully saved to disk.
Firewall Action: None
Recommended Action: None
Revision: 1

2.19.17. unable_to_save_lease_db (ID: 07400017)

Default Severity: WARNING
Log Message: Unable to auto save the lease database to disk
Explanation: Some sort of error occurred saving the lease database to disk.
Firewall Action: None
Recommended Action: Make sure that there is sufficient diskspace available.
Revision: 1

2.19.18. unexpected_advertise_message (ID: 07400018)

Default Severity: NOTICE
Log Message: Unexpected message type (Advertise) in received packet.
Explanation: Received DHCPv6 packet with unexpected message type (Advertise).
Firewall Action: drop
Recommended Action: None
Revision: 1
Context Parameters: Packet Buffer

2.19.19. unexpected_reply_message (ID: 07400019)

Default Severity: NOTICE
Log Message: Unexpected message type (Reply) in received packet.
Explanation: Received DHCPv6 packet with unexpected message type (Reply).
Firewall Action: drop
Recommended Action: None
Revision: 1
Context Parameters: Packet Buffer

2.19.20. unexpected_reconfigure_message (ID: 07400020)

Default Severity: NOTICE
Log Message: Unexpected message type (Reconfigure) in received packet.
Explanation: Received DHCPv6 packet with unexpected message type (Reconfigure).
Firewall Action: drop
Recommended Action: None
Revision: 1
Context Parameters: Packet Buffer

2.19.21. unexpected_relay_reply_message (ID: 07400021)

Default Severity: NOTICE
Log Message: Unexpected message type (Relay-reply) in received packet.
Explanation: Received DHCPv6 packet with unexpected message type (Relay-reply).
Firewall Action: drop
Recommended Action: None
Revision: 1
Context Parameters: Packet Buffer

2.19.22. unexpected_unknown_message (ID: 07400022)

Default Severity: NOTICE
Log Message: Unexpected message type <message_type> in received packet.
Explanation: Received DHCPv6 packet with unexpected message type (message_type).
Firewall Action: drop
Recommended Action: None
Revision: 1
Parameters: message_type
Context Parameters: Packet Buffer

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