Switching

We want to test two different ISP. I have two firewalls each with a different network (of course), but only one layer 3 switch. Is it possible to make one interface on the switch go to one firewall and another interface on the same switch to go to th...

Good day all, Just thought I post this discussion to help somebody that may run into this issue in future.  This is how I resolved this problem,  may or may not apply to all but worth a shot.   I have a Cisco 2951 ISR  running Zone Based Firewall.  I...

I have a 3550 that is running layer 3, and acting as the endpoint of several incoming IP blocks, as well as the default gateway for the internal networks to get out. The remote ISP has assigned a /30 to use on the interface, and they route the block...

I apologize in advance as I am not the most familiar with networking and may be rough with some terms.Recently, I acquired a SG300-28 for lab use and is in L3 mode primarily handling inter-VLAN routing across 9 VLANs, most traffic being on 3 of those...

Hi all!!!I have a core of 8 x 3750-X stack running IOS 12.2(55)SE4 and was wondering if I can do a straight upgrade to IOS 15.2  or there is a need for a hop upgrade? A quick answer would be greatly appreciated! Thank you!

Hi all, out of the box was running 16.12.1c i pushed in the new image 16.12.2 (it was a single box and was not in stackwise vsl) and rebooted the box (changed the boot variable pointing to new image).Apr 29 22:46:02.495: %PMAN-3-RELOAD_SYSTEM: F0/0: ...

hi,Anybody who knows what´s this message means:%PMAN-3-PROCHOLDDOWN: Chassis 2 R0/0: pman: The process iomd has been helddown (rc 139) 

Hello,I have a sup720 65k. Today we had a server which had a NIC failure, and so we used another spare nic from the same server to get it back online. The same IP details were configured on the new NIC. This took about 30 minutes.The problem was that...

I have a Nexus 92160YC switch on NX-OS version 9.3.1.  It's configured to use a radius server (RHEL 7 server running freeradius) for 802.1x MAC Authentication Bypass (MAB).   When it's initially setup it appears to work fine for devices that are auth...

I have host within the same subnet unable to communicate with the server and subjected to ACL configured which should not be happening.Essentially,from the traffic capture we can see destination mac address of the svi vlan24 gateway,this is wrong its...

Good morning team, a question, we had a fault apparently a loop, collect a monitor in the fault interface, will you know why this behavior could be caused?  #show monitor capture test buffer brief0.000000 00:35:1a:a4:a7:c1 -> 01:00:0c:cc:cc:cd STP RS...