Layer 4 firewall (device that can see all protocol headers up to the transport layer) cannot do which of the following?

1
Preventing all ICMP traffic
2
Stopping all HTTP traffic from 9pm to 5am 
3
Do not allow traffic to come from an IP address but let it go to that address
4
Stopping any one user in TCP traffic from 9 pm to 5 am in multiuser system 
5
Question Not Attempted

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