We have a server to server communication using custom UDP ports over a trunk port configured between the server farm switch and the core switch "Nexus 7k" Ping and TCP traffic is working fine, but the udp traffic is not, if we bypass the core and con...
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Forum Posts
The question refers to a private network design not connected to the internet (using switches not hub). Does number of users or devices is one of the factors? If so, what range (in qty) that when exceeded is best recommended to do subnetting?
Resolved! AS2511-RJ IOS Upgrade/Downgrade
Can someone please confirm the following link is the correct/compatible link to my router? I'm practicing reverting IOS to a different version. Additionally, what is a good way to ensure that I save the current version 12.2(46a). Your help is appr...
Resolved! TCP/IP Layers
If I open a website for example www.cisco.com, how the traffic flows according to TCP/IP Layers and how the layers interact to each other to accomplish this task ?
According to Cisco "Design and Configuration Guide: Best Practices for Virtual Virtual Port Channels (vPC) on Cisco Nexus 7000 Series Switches, Revised: June 2015", vPC DCI can be used to interconnect max 2 data centers. Why or how is this the case? ...
Resolved! Is my VTP FUBAR?
Long story short, 3 weeks ago I created a new vlan on my core (6509) Vlan500. Today as I was troubleshooting a connectivity issue with my tenant I noticed that the vlan is on my switches (dual homed 5548s), but it is no longer on the core. I tried ...
I have a question, hope it's obvious, but about the crypto pki certificate chain that is usually present in the running config once the rsa key is generted. I currently can ssh over to the switch with no issues, however, isn't that supposed to show ...
Hello everyone, I need to provide public IP addresses to my customers. I am not going to do any address translation. Therefore, I need to set public ip addresses on PE routers or route them to my customers. As far as I know, I have two options. Usin...
Resolved! IP Routing Tables with OSPF Troubleshoot
Hi all, The scenario attached works fine with OSPFv2 activated in R1, R2 and R4 and advertising all the networks. Then I decided to disable OSPF in R4 and introduce a static route in R2 as follows: Router2# ip route 172.16.10.0 255.255.255.0 10.1....
Resolved! Cisco Static Route
Hello All, One of my clients have multiple branches and all their resources are in the head office data center. They have double router for VPN and Internet. for the Internet router, we are using a small dlink router, but now they want to change it...
Hi All Im looking to see what ports my devices are talking on outbound (the internet). I wanted to run a Packet capture for this I created an object-group rfc1918 access-list CAP extended permit ip object-group rfc1918 any capture CAPIN access-l...
Folks, Hope u guys can help with this. We have 2 vlans, VLAN20 192.168.1.0/24 and VLAN21 192.168.2.0/24 On the 192.168.1.0/24 subnet we have an extended acl inbound. There is no acl on VLAN21 I want to allow clients on VLAN21 to access a server 19...
Hi, I have activated the evaluation licenses in Cisco 4500 sup 7-le switch but now want remove the below licenses. Please find the below output and help us. StoreIndex: 0 Feature: entservices Version: 1.0 License Type: Evaluation Evaluation total p...
hi, I have a radio link connection to another office from my office. We are on the same vlan on the same switch. I want to restrict them internet access but still grant them access to other services and also internal web application. can this be don...
Guys,I want to know if there is any resource (training/videos/docs) which helps to design a good visio network diagram please?Thanks for inputs
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