Switching

dear all, I am trying to configure DHCP relay by using ip helper addresses. Strange enough I configured the ip helper addresses properly but the DHCP requests are not being forwarded. Very strange this behavior. I configured it on other similar devic...

Hey As of now, i'm having two ISR 4200 and two ISR 4300 series routers with 'IOS XE SD-WAN' upgrade. Even though, i'm unable to view or execute sd-wan commands such as below. I'm not sure where i'm going wrong. Is there i need to activate any license...

Hello all,  I just had an issue arise last night when I had a tech onsite add a switch to a 3850 stack running 03.07.03E. The tech had the new switch already powered up when he connected it to the stack. When I sent out the switch because it was a r...

Dear all, Do you cisco switch 3850 , Is it possible for configure object-group and apply to access-list? i try to add object-groups and apply to access-list but my access-list not work. Thanks.

Hi everyone, Here is my topo:  SW4----------(T1/0/6)SW3(T1/0/9)----------SW2                                           | (T1/0/11 Block)            |                                           |-------------------SW1 Here are the flapping log:*May 15 ...

Hi All,In one of my site i  cant able to reach the Router.i want to Add the Route in Router and PIX Firewallip route 10.8.39.180 255.255.255.224 10.8.37.153 Router ConfigBuilding configuration...Current configuration : 5921 bytes!version 12.4service ...

Hi All,Is there anyway so that i can get port security for an unmanaged switch. I had a task in my company to block MAC Address to particular port for which that MAC address can be worked from that port only. It is an unmanaged switch.

Can we enable L3 functionality on this switch---2960X-24PS-L?

Hi I have an L2L between 2 switches (Cat 6500 with SUP-720 and Cat 6800 with Sup-2T-10G) through an L3 interface, we have already found too many total ouput drop on both sides, checking the interfaces that have the TX / RX They are not saturated. One...

I am attaching a topology and I have to give security to switches. Which MAC address will  I give?

Hi all,I am investigating POE issues on a 3850 stack, and i notice some things while troubleshootingSwitch Ports Model              SW Version        SW Image              Mode   ------ ----- -----              ----------        ----------           ...

Hi,I've been trying to configure a DHCP option 15 on a 3650 switch running XE 16.3.5b but I'm getting this error:  STACK(dhcp-config)#option 15 ascii domain.co.uk% DHCP does not allow raw option 15.STACK(dhcp-config)# Does anyone know what could be t...