I noticed one of my dhcp pools was exhausted due to a couple of clients doing hundreds of DHCPD-4-DECLINE_CONFLICT. While I track this down, I do have “ip dhcp conflict resolution” in place, but this issue occurred almost a week ago and none of the ...
Forum Posts
I am trying to make this topology for a unit assessment and it is required of me to configure the switch to ensure that the good laptop pings to the router but the bad laptop cannot. most of the commands I have typed in did not even work it just kept...
Hello,We have C3850 24ports and we are adding vlans on the 10G trunk port. The command use were:(config-if)#switchport trunk allowed vlan add 429(config-if)#switchport trunk allowed vlan add 430(config-if)#switchport trunk allowed vlan add 431(config...
When doing an "sh ip int brief", it shows the interface "Method". Is there a way to change this, from "manual" to "NVRAM". I understand that this gets reset to "NVRAM" after a reload...but I dont want to reload a 6513. Problem is, the interface has t...
Resolved! switchport access and switchport trunk
Can someone confirm my thoughts on this switchport configuration interface FastEthernet0/5 description Mail-Server1 switchport access vlan 710 switchport trunk encapsulation dot1q switchport mode trunk It is my understanding that as this switchport i...
Resolved! no switchport command is not working in
I have a WS-C2960X-48TD-L Switch and in this switch routing, routing protocals are working fine even it is L2 Switch. But when I try to enter the command as "no switchport" in the interface mode, it is not working.Actually it is Layer2 switch or Laye...
Hello, can anyone explain me the difference between IE-3300 and IE-3400 industrial ethernet switches? Also, is IE-4000 serie going eos? Tks Johnny
Hi. I have a Cisco 2960 Series Switch that has stopped working. I can't connect via SSH and when I try to connect via the console port all I get is a black unresponsive screen in Putty. There are no lights (green or amber) blinking on any of the port...
I'm just trying to get verification here.We have two 9300L switches that we know we can stack together. These switches are PoE+. We have two additional switches that are 9300L with UPoE+.Can all these switches be stacked together?I'm thinking yes, be...
Goodday, Is it possible to buy the 332360 for the IE3200?One of these are not correctly connected or broken from our switch.
On a new 3850 Stack the power stack light is orange and I was getting the following on the CLI/LogsSwitch 1's power stack has conflicting power priorities. I have been able to change switch 2's priorities to be different than switch 1 which seems to...
Hello everyone! Can any one help me to understand, what does it mean when system LED (S) is blinking green in cisco 9500 switch.is it a normal behavior or some alarm. Thanks in advance.
Resolved! Extended ACL don't work
I have this topology like this.Vlan 116: can ping to DHCP Server (10.125.115.254)Other Vlan (118, 120, 121) cannot ping to DHCP server, just block icmp protocol.And my command as below:access-list 100 permit icmp 10.125.116.0 0.0.0.255 host 10.125.11...
Resolved! Block Mac Address
Hi.. Can we block some mac address from wired connection?
Hello Cisco community,we have a strange problem with our new Catalyst C1000 infrastructure. We implemented 4 x Nexus 3524X for core, 9800CL and 9115 APs for WLAN, ISE for security and C1000 for wired client access. So far so good. The infrastructure ...
