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A client of mine has two Nexus 9K switches as the 'core' switches in their environment. They have an 'old' management network that can be accessed by one system in the environment. The management network in question resides on VLAN 255.
Both of the Nexus 9K switches have their management ports wired to a management switch which only carries management traffic ...
Recently replaced an Aruba 6200 VSF stack with a UniFi access switch and am troubleshooting connectivity issues on a new VLAN.
Environment UniFi Enterprise Fortress Gateway (DHCP server) USW-Pro-XG-48 core switch UniFi access switch connected via 10G SFP+ uplink VLAN 1 (Default): 10.20.0.0/21 VL...The Issue: We have set up two separate FTP user accounts (Account A and Account B) configured with the same path. If both services are running on the server, we can only connect to one of them and not the other.
Detailed Description: Interestingly, if we disable one of the user accounts in Pure-FTPd, the other account connects perfectl...
I made a simple L2 network for a test. There are 2 L2 switches and 2 hosts (Ubuntu 22.04). They consist of a network like below:
The Hosts has 2 NICs and they have their own IP. Both of switches have it too.
The Hosts' Linux Kernel Option settings are "arp_ignore...
I want to capture DHCPNAK message in wireshark captures in eve-ng. My topology:
dhcp client(cisco ios) ---- sw(plug and play) ------ dhcp server(cisco ios) network: 10.1.1.0/24. How to do that, because I've failed that in the last 2 hours.