When I use the scanany app from my smart phone (on the same network) I only see UDP ports 137, 1900, 5353, & 5355 open. I’m attaching the export from the firewall page . Note I set up two entries, one with just 161 and 162 and the other with all four ports I need for the Tripp Lite PANSA to work . Appreciate your assistance with this. Brian

Simple network Management Protocol (SNMP) runs UDP port 161 and 162 and is a widely deployed protocol used to monitor and Manage network Devices: to obtain information on and even configure various network devices remotely. It runs on any network device from hubs to routers and network printers to servers.

bkankru: Linux - Networking: 1: 11-20-2009 09:07 AM: Port Tcp/udp: rlnd: Linux - Networking: 1: 06-11-2006 01:05 PM: TCP Port 53 Open - How to enable UDP 53? stardotstar: Linux - Networking: 6: 03-16-2005 04:49 AM Not if ISP for wan connection pfsense is connected to blocks 161 udp. And all of your firewall rules you have posted are WRONG, the souce port would not be 161 only the dest port, source should be ANY. Your not going to allow traffic in to 161 because the source port is NOT going to be 161, it would be some random above 1024 The Sun Management Center agent uses User Datagram Protocol (UDP) port 161 by default to communicate with the Sun Management Center server. The Sun Management Center agent is a complete replacement and enhancement for the SNMP agent snmpdx and the Sun SNMP utility mibissa , which also use port 161 by default. Port 1433 is a common port used for SQL Server traffic, but additional ports may need to be opened as well. Please review this Microsoft knowledge base article for detailed information on how to allow SQL Server traffic through a firewall. Ports used by Kerberos Authentication between the Device and Domain Controllers.

So a manager listening on port 161 is unlikely to receive many replies. Instead of listening on port 161, listen on the same socket you used to send out the request. That socket will remember the source port it chose for sending. P.S. DNS, SNMP, and DHCP (registered ports 53, 161/162, and 67/68) are three of the most common. Because UDP scanning is generally slower and more difficult than TCP, some security auditors ignore these ports.

tls_ssl_certs, tls_ssl_certs.

Solution: SNMP Traps happen on 162 iirc, 161 is SNMP queries. EDIT: Yup - The SNMP agent receives requests on UDP port 161. The manager may send

The agent response is sent back to the source port on the manager. The manager receives notifications (Traps and InformRequests) on port 162. The agent may generate notifications from any available port.

RE: port 161/162 not listening on ITA Usually the first place to look is the SNMP service. ITA does not directly communicate via 161/162, it just uses the service.

Standard Port Monitor (using LPR) > 1023 > 1023.

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PORTESS (161) PORRINGA (159). PORT HUDSON (159).

Nothing to worry about and normal behaviour. To resolve any issues SANHQ is reporting, ensure that the SNMP community being used matches in both SANHQ (right click on the group and select group settings) and in group manager (SNMP tab under group configuration) 2004-04-20 · Additionally, while blocking traffic to port 161 from unknown hosts is a best practice, in this case, port 161 is not affected and need not be blocked to prevent exploitation. All devices that communicate directly with the router on those UDP ports will need to be specifically listed in the above access list.
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Det finns 65535 TCP / IP-portar (och samma antal UDP-portar för User Datagram UDP-port 161 är attraktiv för hotaktörer eftersom den kan användas för att

clock. 161 (UDP). SNMP.

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Replies arrive on random number port, not port 161. So a manager listening on port 161 is unlikely to receive many replies. Instead of listening on port 161, listen on the same socket you used to send out the request. That socket will remember the source port it chose for sending. P.S.

UDP/161 TCP/47546,. UDP/47545, TCP9007 UDP/427. UDP/11427 TCP/443. Beskrivning.

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Could this have opened the port. This thread is locked. Then a show snmp would show %SNMP agent not enabled to verfiy this.