The Journey of a Network Engineer:

how


October 25, 2011  1:34 AM

How to Configure PPPoE?



Posted by: Sulaiman Syed
Cisco, Configure, dhcp, how, interface, ios, PPPoE, router, virtual

This is one of the interesting things i have learned in past week. PPP over Ethernet (PPPoE). It is simple, yet tricky. It also has a limitation that network engineers might not know which will bring their network down. Lets see a sample configuration of how to do it. First, configure one Router...

October 19, 2011  3:27 AM

How to configure Lock-and-Key (dynamic ACL)?



Posted by: Sulaiman Syed
?, ACL, Cisco, Configure, dynamic, how, Lock-and-key, network, router, to

Dynamic ACL are very interesting. They provide temporary access at certain times for certain users. Basically, the user will telnet to the router. If the authentication passes, then router permits that IP to to access the internal parts of the network. First, we need to create access-list,...


October 17, 2011  12:32 AM

Loopback address and MPLS-VPN!



Posted by: Sulaiman Syed
Configure, EIGRP, GNS3, how, ios, MPLS, RIP, router, switch, to, vpn

In this article, i will not go deeply into the issue of configuring MPLS-VPN. The steps were mentioned very clearly in an earlier post. MPLS-VPN Tutorial...


October 12, 2011  12:31 AM

How to Insure End to end connectivity in Frame-Relay



Posted by: Sulaiman Syed
active, CCIE, Cisco, Configure, end-to-end, how, ios, keepalive, network, PVC, router, to, VC

This is one of the nice features that i just discovered yesterday. It is the ability to make sure an end-to-end frame-relay connectivity between Cisco routers. In the local router, we can see the PVC status.
Rack1R3#show frame-relay pvc PVC Statistics for interface...


October 10, 2011  2:36 AM

How to change the Administrative Distance when redistributing?



Posted by: Sulaiman Syed
AD, administrative, CCIE, change, Cisco, distance, EIGRP, how, redistributing, RIP, route, router, switch, to

So, lets talk about how can we change the cost while distribution between routing protocols. Distribution between two routing domains should be done very carfully. It is easy when the there is single distribution router between the two domains. Things get slightly...


October 7, 2011  1:39 AM

How to change metrics in RIP?



Posted by: Sulaiman Syed
CCIE, Cisco, configuration, cost, EIGRP, hops, how, metric, offlist, OSFP, RIP, router, routing

RIP is really undesired protocol. It has a slow convergence by default, and generates lot of traffic. On the positive side, it is one of the easiest routing protocols to configure. One network statement command, and you are done. Generally, using RIP is not recommended. There are better...


October 3, 2011  1:59 PM

How to run INE CCIE Routing and Switching Lab on IOU?



Posted by: Sulaiman Syed
CCIE, Cisco, exam, GNS3, how, INE, IOU, Lab, routing, switching, virtual, VMware

This is a utility which I got to know few days ago. It was one of those things that made my life really really good. Since the preperation for CCIE R&S Lab exam started, i wanted a platform to practice the concepts. Although we do have latest technology in our production environment, i can't...


August 23, 2011  7:23 AM

How to Configure Citrix NetScaler for Hosted Microsoft Exchange 2010?



Posted by: Sulaiman Syed
2010, CAS, Citrix, Configure, hosted, how, HUB, Load Balancer, microsoft, NetScaler, OA, OWA, SSL Offload

Microsoft Exchange 2010 is one of these products that being used in almost every organization. It seems that getting familiarize with it is the best thing a system engineer could do right now. Most big organizations will want to have redundant servers running the Exchange. For that, there is a...


August 21, 2011  4:51 AM

How to Configure Citrix NetScaler for Hosted Microsoft Exchange 2010? Part-4



Posted by: Sulaiman Syed
2010, CAS, Citrix, Configure, hosted, how, HUB, Load Balancer, microsoft, NetScaler, OA, OWA, SSL Offload

In the previous entry, i have spoken how to Load Balance CAS using Citrix...


August 17, 2011  5:59 AM

How to Configure Citrix NetScaler for Hosted Microsoft Exchange 2010? Part-3



Posted by: Sulaiman Syed
2010, CAS, Citrix, Configure, hosted, how, HUB, Load Balancer, microsoft, NetScaler, OA, OWA, SSL Offload

In previous Entry I have shown how to import certificates, and do the re-write policy. Well, in this entry. I would like...


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