topic Re: TCP|UDP request discarded error in Network Security

TCP|UDP request discarded error

Stevan44 — Thu, 07 Oct 2021 15:25:59 GMT

Hello Everyone,

I'm trying to allow access to a DVR so that I can access it from the outside using port 37777. The app on the phone is using the outside IP and port 37777, but the the firewall is showing:

%ASA-7-710005: {TCP|UDP} request discarded from source_address/source_port to interface_name:dest_address/service
The ASA does not have a UDP server that services the UDP request. Also, a TCP packet that does not belong to any session on the ASA may have been discarded. In addition, this message appears (with the SNMP service) when the ASA receives an SNMP request with an empty payload, even if it is from an authorized host. When the service is SNMP, this message occurs a maximum of once every 10 seconds so that the log receiver is not overwhelmed.

I've tried everything I can think of to get it to work. For the interest of time can someone please show me the CLI configuration commands that would accomplish this task. Thank you.

DVR is 124.2.0.100

Re: TCP|UDP request discarded error

balaji.bandi — Thu, 07 Oct 2021 15:41:05 GMT

not sure where this IP located > 124.2.0.100 (internet ?)

Then do you have ACL which allow ?

Re: TCP|UDP request discarded error

Stevan44 — Thu, 07 Oct 2021 16:42:56 GMT

Yes, but it not working what would be the best way to define them?

Re: TCP|UDP request discarded error

balaji.bandi — Thu, 07 Oct 2021 17:22:23 GMT

We need to look at your ACL how it is configured? to add any further suggestions.

Re: TCP|UDP request discarded error

Stevan44 — Thu, 07 Oct 2021 18:59:31 GMT

object network DukeDVR
host 124.2.0.100
description DVR

nat (inside,outside) source static DukeDVR DukeDVR service 37777 37777

access-list outside_access_in permit tcp any host 124.2.0.100

access-group outside_access_in in interface outside

Re: TCP|UDP request discarded error

Stevan44 — Sun, 10 Oct 2021 05:39:16 GMT

Since there has been no response this must be a tough one to fix!

Re: TCP|UDP request discarded error

balaji.bandi — Sun, 10 Oct 2021 08:29:03 GMT

If the DVR is outside your network and internet, NAT should be able to work for you.

Or are you Looking for source IP address - 124.2.0.100 as source to coming towards your LAN to access 37777

If that is not the case explain?

what is the Source - where is that source ? ( LAN or Internet ?)

what is desitnation - where is that destination ( LAN or Internet ?)

what port ? ( TCP or UDP with port number ?)

Re: TCP|UDP request discarded error

Stevan44 — Mon, 11 Oct 2021 02:27:25 GMT

Thanks for the reply I figured out the issue its fixed.

Re: TCP|UDP request discarded error

balaji.bandi — Mon, 11 Oct 2021 11:06:04 GMT

Glad to know it was fixed, what was the fix for our users.

Re: TCP|UDP request discarded error

balaji.bandi — Mon, 21 Jul 2025 07:05:35 GMT

As community we no need to get frustrated when people do not like to share their solution, i am sure this was human error of config, that is the reason it was not shared.