How do I disable SIP-ALG in my router or firewall?

[Dexter322]

My company is moving to VOIP phones and we were asked to disable SIP-ALG. I ran the command and performed the test that the company wanted me to run. In the test results it's still showing the SIP-ALG is enabled. Has anyone ran into this issue? Below is the command I used .

config t

policy-map global_policy

class inspection_default

no inspect sip

end

[Leo Laohoo]

no ip nat service sip tcp port 5060
no ip nat service sip udp port 5060

That's how to disable ALG on Cisco routers.

[zarjer]

Can you describe what would be possible impact if we execute these commands in our router in production?? Thank you.

[M02@rt37]

Hi,

What is your Cisco router series?

Thanks.

Best Regards.

Ben

[MSD1001]

how Do I disable sip alg for a range of ports on cisco C921-4P router ?

no ip nat service sip tcp port-range 6100 6200
^
% Invalid input detected at '^' marker.

Please advise