Hi, I need some help on how to create a simple firewall rule-base using pseudo-c

Question

Hi,

I need some help on how to create a simple firewall rule-base using pseudo-code style. Below are the rules I'm working on... any help would be appreciated. If anyone knows a good youtube video or website that would help me with this it would be great. I was trying to research on the protocol and the source and destination ports to use but I'm so confused I've had it a million different ways.

Use the following syntax

sorry it kelp erasing my syntax so instead of (< >) I used parentheses

(action) (protocol) from (source_address) (source_port) to (destination_address) (destination_port)  

The fields can be set to the following values:

Your protected network includes all hosts in the 129.71.0.0 class B network. The subnet 129.71.12.0 is configured as a screened subnet. The stateful inspection firewalls IP address is 129.71.0.1. Assume the firewall implements deny any implicitly.

Write a firewall rule-base that fulfills the following security requirements:

Thanks

Explanation / Answer

1. access-list acl_inside permit ip 129.71.0.2  255.240.0.0 any

2. Allow from 129.71.12.8

3.access-list acl_outside permit tcp any host 129.71.12.12 eq pop3

4.access-list acl_outside permit tcp any host 129.71.12.12 eq smtp

5.Allow from 12.7.6.15

6. static (inside,outside) tcp 129.71.12.12 smtp 129.71.12.15 smtp netmask 255.255.255.255 0 0

7.Deny from all

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