Why OSPFv3 is more faster than OSPFv2

The big problem with OSPFv2 is the Router LSA which carries many informations through Link Types 1 2 3 ( Neighboring p2p or transit network, virtual link ) in addition it lists all IP prefixes for links in p2p with Link Type 4. Any changes of Link Ty...

ASA 5506-X RPF Drop

I learning how to set-up firewall and came accross such a problem when trying to connect through web-browser to DMZSERV : 3. The packet is coming from an outside network. The device looks up its NAT table for necessary translations. 4. The packet is ...

Reserve sandbox

Hello,How do you actually reserve a sandbox? There doesn't seem to be any Reserve button any more on this latest GUI. I'm logging in and looking at this site: https://devnetsandbox.cisco.com/DevNet Thanks!

Unable to access Spotify Speakers from Wifi

Hi there, I have a Cisco ISA 550 that is my main router which connects to a SG-500 52 Port Switch and a WLC 2504 with 4 1852 AP's. For some reason, my spotify speakers are not recognized when I connect to the Wifi however I can find them when I wire ...

problem VRRP, LACP Nexus 3048TP LAN1K9

Hi, i have problem of synced betewin my 2 switchs nexus 7.0.3.i7.3I use feature BGP, LACP and VRRP (also VPC etc..)But it's impossible of configure correctly the protocolI have many errors :One : In log :%ETHPORT-3-IF_ERROR_VLANS_SUSPENDED: VLANs 9-1...

Need to check vulnerability for cisco switch 2960X

Wired Dot1x clients cannot get a DHCP IP address on a 3560 switch

Introduction: Introduction:This document describes an issue faced by an user where Dot1x clients doesn't get connected to network by using DHCP address configured on 3560. What is Dot1x?Dot1x or technically known as 802.1X is a standard which was des...

Connection closed by foreign host

Work on a Mac for my lab exercise, I have followed all the instructions for an SSH connection, including configuring line VTY 0 4I have read all the posts on here and nothing seems to fix the error" connection closed by foreign host".     

SD-WAN DIA - NAT-Type Interface , Pool , Loopback

Hi everyone, Currently, I've been using the Interface NAT type for Direct Internet Access (DIA) across multiple networks.     However, I recently came across a Cisco article (Below link) suggesting the utilization of a Loopback interface for DIA ins...

SIG Policy unexpected behavior

Hi. We had weird problem.   - vManage, vSmart, vBond : 20.9.4 (Manage 20.9.4.1) - C1111-4P SD-WAN Mode : 17.9.4a   Only 3 traffic go to SIG by traffic policy (O365, Webex, Windows Update) But one of our custom application which was defined as a inter...

ACI and NSX-T Intergrate

hi everyone, We are implementing a project and will integrate ACI with VMware NSX. I have a question: when integrating APIC with VMware NSX, is it necessary to first integrate with vCenter so that APIC automatically creates VDS, and then Integrate wi...