Switching

I have a WS-C3750X-48 switch running an IOS version that is vulnerable to Cisco Advisory ID: cisco-sa-20150325-tcpleak "Cisco IOS Software and IOS XE Software TCP Packet Memory Leak Vulnerability". The switch is located in our internal network, and i...

Hello, I have been following a tutorial for some multicast configuration. What I do not understand is how do we determine the ip address for the client to subscribe to if they want to receive multicast traffic? The below config specify 239.4.4.4 but...

Hello, I am having a PXE booting issue. My network is divided into three different subnets. The 192.168.1.0, 2.0, and 3.0. The 1.0 is a server subnet. The 2.0 and 3.0 are user subnets. The issue I am having is I cannot PXE boot from a different subn...

I posted this here, because 2 weeks ago, I created a mess at work, and after trying to research it, I still don't understand how I did it. They are using the nexus 5K with virtual port channels, down to our server chassis. I wanted to bond two nics o...

Hi, I want to inter-connect the 2 different running networks (192.168.72.0/21 and 192.168.80.0/21) by using this the catalyst 3850 switch. For which I am using inter-vlan routing by enabling 'ip routing'. IP on interface vlan1 - 192.168.79.241 & IP o...

Dear Team i have mistakenly erased the ios of cisco2950 24 port switch switch is not booting now what need to be done i didnt have ios image also please share me the lik of ios if possible and how to load it on switch please help

Hi Guys, As per subject above, all switch is using VLAN1 as management with few other multiple VLAN. If we remove the VLAN1, Does other multiple VLAN is still working?, the reason is we suspect traffic flooding on VLAN1 and couldn't locate the sourc...

So, I have a Catalyst 2960 that has 12.2 (55) installed on it and basically turned it into a Layer 3 switch. I have the default VLAN 1, VLAN 10 and VLAN 20.  VLAN 1 - Ports 1-12 - 192.168.1.X VLAN 10 - Ports 13-24 - 192.168.10.X VLAN 20 - Ports 25-36...

I have a production cisco WS-C2960G-48TC- switch at one of our sites that we recently acquired. this switch has an image of:  Switch Ports Model SW Version SW Image ------ ----- ----- ---------- ---------- * 1 48 WS-C2960G-48TC-L     12.2(25)SEE3    ...

I am setting up multiple VLAN's in a small to medium size office with 180 hosts.  To do this, I will add a layer 3 switch as a distribution switch to link up multiple L2 switches that have up to 4 VLAN's each.  There are two routers in the office, on...

So NX-OS 7.2 is supposed to have a fix for the issue which won't let you run a routing protocol over a vPC enabled Vlan, if that routing protocol uses multicast for neighbor keepalives.  To those of that have keep dancing around this issue it's nice ...