How to block UDP port 16470 on ASA 5510

Hi,

I need to block UDP port 16470 on ASA 5510 for a trojan. I have got internet coming from ADSL interface and want to block data going from users machine to the ADSL interface on UDP 16470 so that i can find out which PC has the trojan. How can i set the access rules?

I have tried setting ACL on ADSL (outgoing rules) but it blocks the internet. I was wondering where to set access list to block UDP port 16470.
Perth-ITAsked:
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TMekeelCommented:
access-list acl_Outbound line 1 extended deny udp any eq 16470 any any
access-group acl_Outbound in interface inside
0
fgasimzadeCommented:
access-list acl_Outbound line 1 extended deny udp any eq 16470 any any
access-group acl_Outbound in interface inside

This will deny everything since access lists have explicit deny at the end

You need to add permit ip any any

access-list acl_Outbound line 1 extended deny udp any eq 16470 any any
access-list acl_Outbound line 2 extended permit ip any any
access-group acl_Outbound in interface inside

Moreover, is it a source or a destination port?
0

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