A short non-technical blog just to share with you guys the random thoughts that ran in my mind whenever I go study. - How much time do I have left before I take my lab? - Thinking of checking facebook, youtube, linkedin, techexam - Should I write a blog after learning this lesson - How … Continue reading Random thoughts while lab’n →

Continuing on to our security basics this time with ACLs. When I was studying for my CCNA almost 3 years ago, it made mentioned of time-based policies but not once in any lab manuals was I able to encounter what it looked like. Well here it is, so imagine you are managing your network (really … Continue reading Time-based ACLs →

I think I've done enough BGP for the week and time to do some security basics. service password-encryption ! username delan password ccie enable secret ccie ! aaa new-model ! aaa authentication login VTY local group tacacs+ aaa authentication login CONSOLE group tacacs+ line aaa authentication enable default enable aaa authorization exec group tacacs+ if-authenticated … Continue reading AAA back to basics →

You are the network engineer for ACME Inc and your company has decided to change Autonomous System (AS) number, not sure what the reason for the change but you're just doing what you are being told. There's two upstream connection to AS 900 and AS 800, according to ISP AS 900 it would take a … Continue reading BGP Local-AS to save the day →

This will just be a quick blog about BGP Advertise Maps, so imagine you manage AS 200 and you have peers on 2 upstream providers AS 300 and 100. Both 300 and 100 are peering as well. You are also the transit for AS 254. AS 300 is learning routes from AS 254 both from … Continue reading BGP Advertise Maps →

Just checking in tonight before I go to sleep and call it a day. I think I have mentioned in a previous blog that I will be taking a week's leave to give myself kinda like a mid-term big push into my CCIE study. It will be starting tomorrow. I am really hoping that I … Continue reading Short check-in →

I will admit it took me studying for the CCIE R&S to understand the difference between shaping and policing. Yes, you will slightly encounter this topic during CCNP switch but from how I remember it, it was in the switch exam which talks about hardware QoS. Now working for a Service Provider I get to … Continue reading Shaping vs Policing →

I was just received a call from a good friend of mine. He told me he just passed his lab exam in CCIE Data Centre which now makes him a dual CCIE RS/DC. He works for a company based in Queensland that claims to maintain 10000 networks, considered 2nd largest network in Australia but they … Continue reading Dual CCIE friend & DMVPN →