Switching

I have a 3825 with 1 nme-xd-48es-2s-p and 1 hwic 4esw.  My ISP provides two public static IP's.  I want to come from the cable modem to a 3-port DMZ (on the 4ESW), pass one IP to my firewall and the other to a second firewall.  Basically, use the 4ES...

hello all, does anyone had this issue?my WS-C2960X-24PS-L randomly shuts down and i have to unplug and plugin the power cable to power it up.i already updated to the latest iOS changed cables and connected to an UPS and still shuts down and no reboot...

Looking at a Wireshark trace from a connection to an SF250-24P switch and noticed that quite often the switch would broadcast an ARP request from itself to all IP addresses in a particular subnet (in the case of the attached screenshot 1-253 i.e. 192...

Hi, I have 2 WAN links. Therefore I need to enable traffic to go to WAN1. WAN2 is just a backup.If I just use metric, will the backup route@WAN2 works if main route fails? or need to configure "track"? ip route 202.188.7.12 255.255.255.255 10.1.1.1--...

HI, We have a C6509 switch, which has been running for more than 13 years. The version it runs is Version 12.2(18)SXF6.Recently, we encountered a problem, and sometimes there will be a lot of packet loss on this station. And the device will appear st...

Hello, We support a radio network that uses Motorola GGM8000 routers for connecting to the back haul network.  These routers can communicate without issue until we install a Cisco switch in-between the 2 routers at which point the connection breaks. ...

Hi everyone, Good morning! Hope you can help on this... I never imagine this (may) happen to me here.... I barely pay attentions but couple months ago I realized all the connected-port lights on Csico switches are flashing simultaneously. Most of the...

Can some one clarify how to change admin username / password and root-system Username and password?

Hi, I have 2 x Cisco Nexus 9K 93180YC-EX units connected via vPC, plus a port-channel (also with vPC) back to our L3 Core (6509 VSS pair).  We have a new ESX Host trying to boot via PXE to get a DHCP address but it fails each time getting a 'No offer...

I cannot delete ios16.12.01 from 9200 switch. 16.12.3 already is already installed

We are currently running 6807-XL in a VSS pair using Quad--SUP6T. We are planning to upgrade from 15.5(1)SY3 to 15.5(1)SY5 as the current version has some software vulnerability.  What is the leats disruptive to almost non-disruptive upgrade recommen...

So I'm setting up a switch and I have to enforce password complexity. This includes minimum length and special characters and such. I tried to configure a common criteria policy but it didn't seem to actually enforce the policy is it only on using pa...

Hi all, Newbie to networking here. I'm having an issue where I can't access a C3750 switch on a switch stack. There are four switches in the stack.  When I try to telnet into the switch, I'm getting "% Connection timed out; remote host not responding...