The Journey of a Network Engineer:

Configure


August 27, 2013  6:05 AM

How to configure Cisco DMVPN? Part-2



Posted by: Sulaiman Syed
Cisco, Configure, DMVPN, route, router, routing

In the previous entry, we saw how to configure a basic DMVPN network. Let's see the effect of adding the extra multicast mapping on our network table, and EIGRP adjuncies.

August 18, 2013  12:15 AM

How to configure Cisco DMVPN? Part-1



Posted by: Sulaiman Syed
ARP, Cisco, Configure, DMVPN, how, mGRE, route, Tunnel, vpn

Configuring Site-to-Site VPN although straight forward, but it fails to scale. just imagine how many tunnels should be created to connected to 10 sites, specially if...


July 28, 2012  1:26 AM

How to Interconnect OSPF areas? – part 1



Posted by: Sulaiman Syed
CCIE, Cisco, Configure, network, OSFP, protocol, route, router, routing

While studying for CCIE, i realized that no scenario will be without connecting different OSPF areas. So, what are the rules when having multiple areas in OSPF to have a fully converged network with full route propagation? The rule is one

Every Area is OSPF should be connected to...


February 13, 2012  10:33 AM

How to configure VRF-lite?



Posted by: Sulaiman Syed
CCIE, Cisco, Configure, forwarding, how, routing, to, virtual

VRF-lite is as the name says, light version of VRF. What is VRF? It is Virtual Routing and Forwarding. It is a logical way of segregating network traffic. Mostly used with

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December 14, 2011  12:26 AM

How to configure per-vlan QoS in Cisco 3550 and 3560



Posted by: Sulaiman Syed
3550, 3560, CCIE, Cisco, class-map, Configure, how, Lab, mark, nested policy, parent policy, per-vlan, police, policy-map, QoS, rate, switch, to, vlan

You might think that configuring QoS in Cisco Switches will follow the same syntax. That what I thought till i started studying CCIE. Let's See one major difference in how policing is implemented on these two platforms. Cisco Catalyst 3550 I find the configuration of 3550...


November 3, 2011  9:06 AM

How to configure Frame-Relay Switching?



Posted by: Sulaiman Syed
CCIE, Cisco, Configure, exam, how, Lab, map, router, switching

For some reason i thought that i have written an entry for Frame-Relay switching. But the records show none. So here it comes. During studies of CCIE, you might need to configure a Router to act as a frame-relay switch. The configurations are very simple and straight forward. There is the old...


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...


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