I have received documentation on Switch Stacking, specifically focusing on Catalyst 3750 switches.(https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12-2\_40\_se/configuration/guide/scg1/swstack.pdf) However, I require a thorough understanding of the concept as it applies to the deployment of the C9300 series switches in a production environment. My question is whether the information provided in the Catalyst 3750 documentation is applicable to the C9300 series switches as well. Are there any major changes or differences in stacking technology between the two sw ..read more

Hello guys. Will PMTUd work for UDP traffic correctly in such scenario ? How Sip phone or PC 1 would determine best pmtu for udp connection to srv1 or srv2 without fragmentation if RT1 and RT2 doesn't know about EOIP with lower mtu between them ? Should you make EOIP mtu 1500 for udp to work flawlessly in such setup ? Scheme: https://preview.redd.it/question-about-pmtud-working-within-eoip-tunnel-in-such-v0-ukp7qp6jvgwc1.png?width=1080&crop=smart&auto=webp&s=e70879bd3b41bd10a6ce29c3b37141048476eabb submitted by /u/NBogos [visit reddit] [comments ..read more

Hi, So we are facing one small issue We have google workspace (education), everything is working fine expect the login. So it might be our network or it might be our internet provider. Every time we login in it’s automatically forwarded to google.ae ( and show error message to check the dns ) Once I search back to gmail i can see that it’s already login , the login is working fine for sure, but it’s showing this message and i think it’s because it’s forwarding to .ae So what is the issue here? And how to fix it? Is it the firewall, is it from the internet provider? submitted by /u/Dense_Cons ..read more

Hi all, Sorry if this is a more unusual post. I study quantum optics and my lab is looking for DWDMs to use in some experiments. However, I find it hard to parse the jargon used in the telecom industry to make sure that the DWDM is useful to us in the lab, more specifically if the DWDM is bidirectional. Or at least I think that is the term I found one paper mentioning this; I'm looking for a DWDM that does both mux/demux on a single fiber. Effectively, if I have a single fiber with multiple frequencies (input) it will spread them into new channels (output), but if I put multiple frequencies i ..read more

Hello, have you guys tried using CML on a pay as you go server? The thing is I can’t save for a strong pc yet for my Service Provider labs (ios-xrs). Has anyone else done this and if so could you send me a guide or steps to do it? I’m saving up for a CML subscription right now. Any advice please, thank you submitted by /u/KiryuKobe [visit reddit] [comments ..read more

Cisco Event Response: Attacks Against Cisco Firewall Platforms Cisco Adaptive Security Appliance and Firepower Threat Defense Software Web Services Denial of Service Vulnerability* Cisco Adaptive Security Appliance and Firepower Threat Defense Software Persistent Local Code Execution Vulnerability* Cisco Adaptive Security Appliance and Firepower Threat Defense Software Command Injection Vulnerability Exploitation and Public Announcements Cisco has confirmed that this vulnerability has been exploited. Cisco strongly recommends that customers upgrade to fixed software to resolve this vulnerab ..read more

I’m wondering if there is anyone out there in network land who has a role that basically allows them to be mostly 9-5 work and fairly stress free. As the title here says. What is your role and what type of company/industry is this that you work in? submitted by /u/No-Sink-9601 [visit reddit] [comments ..read more

I am writing some scripts for network analysis (out of personal interest) and was wondering if anyone is aware of any methods of tools that will allow me to determine if a given host is a piece of networking equipment rather than an end-user device? Thanks for any advice! submitted by /u/Ok_Language_5003 [visit reddit] [comments ..read more

Work laptop Win 10 Cannot Connect To WiFi After Working Correctly For Over 1 Year - EU has a lap top that they would use at various locations connecting to a VPN once a network connection is established. - This WiFi connection has worked for the last year and others with a similar setup have not had an issue. - User comes to my office and connects with one corporate WiFi without issue and a backup non-coporate connection. - User can connect to the problematic access point with a CAT6 connection. ​ We had another user with a very similar issue (this one suddenly couldn't connect wirelessly to ..read more

Hi guys, My company has branches in 3 locations (the US, China, and Canada). I want to create a FULL-TUNNEL VPN for users who connect from coffee shops, airports, and hotels. I will do it using the Cisco profile editor and call it a UNSECURED VPN profile. My question is: Instead of creating 3 profiles for the US, Canada, and China, is there a way to redirect the user to the correct VPN profile depending on where the user connects? For example, the user is connecting from China > connect to the China FULL-Tunnel VPN My Devices: Cisco FMC / Cisco FTDs Thanks, folks submitted by /u/Existing ..read more