Go through this forum...it's on 'blocking ports'
https://www-secure.symantec.com/connect/forums/need-help-configuring-firewall-ports-sepm-11
You can specify the port or service to block under 'SERVICE' in the Firewall rules...
| Service |
Specifies the services that trigger the rule.
Typically, specific types of services occur on specific ports. For example, Web traffic (HTTP and HTTPS) generally occurs on ports 80 and 443. The Service list enables you to group multiple ports together.
You can select a service from the list, or you can define additional services. You can add any of following ports and protocols:
You can apply the rule to inbound network traffic, outbound network traffic, or network traffic in both directions.
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in the firewall rule
click on add new rule
select host
select ip address range or subnet
now click on okay
the rule will be rule 0
now on rule 0 , doubel click services
you will get a protocol window
in the local and remote add port 80..
click on ok
move this rule to top...
(click on this rule and at the bottom select move up)
rules are applied on the order they are listed.
let me know if this was helpful: