After the restart of a 3650 distribution switch stack that is acting as an RP, a downstream switch was not able to send multicast traffic; other parts of the network were not affected. After considerable troubleshooting, we discovered that removing t...
I need to set the source interface for TACACS communications on an ASA to a different interface than where the TACACS server is located, but I have not been able to find it. I have the TACACS server behind the inside interface, but the TACACS server ...
I have a router connected to an Internet line and have also configured "login on-success log". I am seeing many successful login attempts with no username on what seem like arbitrary port numbers. As this system is connected to the Internet there are...
I decided that denying any incoming ports above 2000 and below 10001 on the external interface, with a few exceptions, was the safest way to go. I could find nothing to tell me why these messages were being logged as there was no listening process on...
