H12-722 Exam Dumps - Huawei Certified ICT Professional - Constructing Service Security Network (HCIP-Security-CSSN V3.0)

Block

Declare

Alarm

Execution

DF, bit is down, and MF bit is also 1 or Fragment Offset is not 0,

155955cc-666171a2-20fac832-0c042c047

DF bit is 023, MF bit is 1 or Fragment Offset is not 0,

DF bit is 0, and Fragment Offset + Length> 65535.

The DF bit is 1, and Fragment Ofset + Length <65535.

The firewall is a bypass device, used for fine-grained detection

IDS is a straight line equipment and cannot be used for in-depth inspection

The firewall cannot detect malicious operations or misoperations by insiders

IDS cannot be linked with firewall

www file

PE file

Picture file

Mail

For loose inspection: if the source address of the packet exists in the FB of the firewall: the packet passes the inspection directly

For the case where the default route is configured, but the parameter allow-defult-route is not configured. As long as the source address of the packet is in the FIB table of the firewall

If it does not exist, the message will be rejected.

For the situation where the default route is configured and the parameter allow-defult-route is matched at the same time, if the source address of the packet is in the FIB table of the firewall

If the packet does not exist in the loose check mode, all packets will pass the URPF check and be forwarded normally.

155955cc-666171a2-20fac832-0c042c0427

For the configuration of the default route, and at the same time matching the parameter allow-defult-route, if the source address of the message is in the FIB table of the firewall

If it does not exist in the l0e check, the packet cannot pass the URPF check.