Switching

Hi everyone !I'm just wondering how can be the behavior of the "ip directed-broadcast" command when the interface get a ip packet in 255.255.255.255 ?I understande that the command allow the "explosion" of a directed-broadcast address in the subnet d...

Hi all.  I have a non-Cisco router and it has no sensible capabilities.  There seems to be a spam botnet on the internal network (unknown which are infected systems).  This router cannot do port blocking from inside to outside and my goal would be to...

Is there any way to keep an SVI up (in this case, an L3 vlan that exists purely for vPC+ keepalives) without burning a physical port for it?From what I can see, a fabricpath connection does not keep SVIs up the same way that a typical trunk or access...

Dear All,hope you are all doing well,I need your kind support to troubleshoot my new design as you can find it in the attached file,the setting of the up-link interfaces as below: plz find the blow seting for the up link interface on  SW_Ainterface T...

I have a VPN on my ASA 5510 between (A)192.168.255.0/24 and (B)172.20.2.0./24. The purpose of the tunnel is to send kerberos tickets from our domian controller on the A side, across to a server at B, and receive a respose. I want to lock down inbound...

Is there some kind of trick to getting the fastethernet 0 management port to come up? My adjacent switch is up/up, but fe0 is down/down. I dont' see how this could be possible. I am getting all my info remotely, but I am pretty sure it's wired up cor...

Hey, it seems that ever since we converted the 3750 from a L2 to a L3 switch with 'ip routing' that we have been getting the following messages while doing 'show logging'%CMP-5-NBR_UPD_SIZE_TOO_BIG: Number of neighbors in neighbor update is 128, maxi...

We have a number of sites running Cisco 881 routers.A few of the sites are connected by IPSec VPN tunnels that have been configured using Cisco CCP without any issues until now.  On one location I can ping from a workstations on  Site1 to Site2, howe...

My workstation(10.0.0.250) directly connected to 6509_1 switch. 6509_1 is gateway with ip 10.0.0.5/22. Sometimes routing stop working, but after 3-5 minutes all back to normal.When issue occur i can't ssh to 6509_1, but i connect to second 6509_2 (10...

i have a stack of 3750x, with minimal configuration. there are two vlans, and two vlan interfaces with IP addresses. when i ping out from this switch to another host, it picks vlan1's ip address as the source automatically. i tested this by doing two...