Other Network Architecture Subjects

Dear All, Im pretty new here and also pretty new in networking. Let me tell you what i need help for.So, i need to configure a Cisco 1841 as you can see in the attached diagram.  I noticed Cisco 1841 comes with 4 ports: 2 FE, 1 Console and 1 aux. 184...

Hello,I have trouble with ports going up/down all the time in my company network.When i use PCs that are connected to this ports everything works but on switch it shows like this:28-May-2020 07:50:52 %LINK-W-Down: gi1/0/4528-May-2020 07:50:56 %LINK-I...

Hi all: I'm brand new to the community & still a student, but did a search and could not find a question for this specific problem that I'm repeatably having that is driving me stark raving mad! lol In PacketTracer, I want to disable portfast on my t...

I bought this equipment and when it started it does not allow me access when configure terminal, it tells me command not supportedWhat could be happening?Best regards

Summary: I can ssh to an svi on the switch, but I cannot ssh to an L3 configured port (ie no switchport, ip address set) I can ping the L3 interface from ssh client and from the internet (so gateways and routing are all working). The L3 interface can...

I downloaded last version (7.3) debian package of PT and tried to install in Debian 10, my desktop, and tried to in Ubuntu 18.10 and 16.10. Was a terrible experience without a happy end. At final, give me all kind of errors. In Debian, return this er...

I ran across this bit of material while learning about port access control lists: PACLs have a few restrictions that vary from platform to platform. The followingare some of the most common restrictions:• PACLs only support filtering incoming traffic...

I would like to find out which Cisco router ports a server is connected too.  I've tried to use sh mac address-table| include <MAC>.  However, the MAC isn't listed.  cisco01#sh mac address-table | i 8c 38e7.d38c.ab5a DYNAMIC Gi1/0/19 1050.5786.8c53 D...

I have a problem with SIP-ALG on IOS-XE. My setup is: Cisco ISR4431/K9 isr4400-universalk9.03.13.02.S.154-3.S2-ext.SPA.bin This is an Internet edge router. I want to migrate static NAT for Astersk server from old Cisco 2921. On 2921 sip-alg correc...

Hi , We have a serial link with Crypto configured.Not Telcom wants to change the interface to Etherenet.There is G0/0 interface . They said new link is MPLS.Diginet to EThernet . Please advise about crypto config . can I use the same CryptoCurrent In...

We are trying to implement both HSRP between our Edge Routers, as well as implementing HA on our Firewalls. Currently, they are all completely separate devices logically and physically. Traffic destined for External is directed through Router01 throu...