Network Management

Hallo, I have problem with my website access, i my case i can access my website outside my network. but can't access my website in my network. i use IIS as my webserver and cisco 2900 as my router. i have setup NatLoopkback,hairPin nat and DNS intern...

Hi, I would appreciate if someone could help me with a network issue.    I have a remote location with a switch I can not log into.    I can remote into PC -> CBS250.  However, I have a CBS350 that is connected to the CBS250 that I can not log into. ...

aside from buying a Switch that does all this in one device, I am trying to connect my 7 vlans to their own DHCP Servers being hosted on Linux  as the Nexus does not support DHCP Servers and the guest shell repository is no longer valid.   In Linux ;...

Hello, am abit new to Firepower configuration.. We have two ftd instances, one as campus and another as perimeter, both managed from fmc. The the two instances share routes via ospf peering, and bgp retribution also configured.The problem am facing i...

Hello,New to Firepower configuration.  My inside wired network is working fine.  It is vlan 1 and pretty much default configuration.  I'm trying to add a new subnet to the inside for a wireless network. I connect my firepower to a router on another i...

I am a novice network guy.  If I have missed something obvious, please let me know. I have a N520-20G4Z-A and using SFPs only in ports 4,5,6, and 7 - Port 7 won't come up.  There are no other connections to the router.  The four of the ports are conf...

When trying to upload a Nexus 9k file, I create the job, select the file, and the job begins and after it progresses to 100% I get a successful pop-up, but when I go to the job dashboard it says the job failed with a "file not found" error. Any advic...

Hello, I know we should have migrated by now, but we still have 2 physical GEN 2 Prime appliances with Prime 3.10 (primary + secondary). A couple of days ago the High Availability broke between the Primary and Failover appliances. After doing the Rea...

Hello, I have been spending hours trying to get SNMPv3 Informs working on any Cisco IOS or IOS-XE and it's just not working for me. The reason I want to use Informs and not traps, is that Informs are more reliable and will be queued and retried if th...

Hello   So currently I have a DSL MODEM - FPR1010 - SG350XG. My Internet is DSL w/ 8 static IP's and the FPR does the PPPoE and is connected to the SG350XG with routing back towards the Internet... On the SG350XG I have 6 vlans [each single vlan is a...

Hi,I am new to networking, but I have a question about setting up a home lab to learn routing and switching.  I would like advice on whether I should prioritize real hardware or if GNS3/Packet Tracer is sufficient for hands-on learning.