The Journey of a Network Engineer:

ARP

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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 27, 2012  5:04 AM

PPP over Frame Relay



Posted by: Sulaiman Syed
ARP, CCIE, Cisco, configuration, Frame-Relay, PVC

In the process of studying, i came upon a dreaded topic. Well, it was dreaded cause i never got my hands at it. PPP over Frame Relay, or PPPoFR. For some reason, I can't figure it out. So, the best is. Do little studying about it, write it. and Hopefully it sticks in my head. To configure PPP...


August 3, 2011  7:09 AM

How to add Static entries to MAC and ARP table in Cisco Switch



Posted by: Sulaiman Syed
ARP, arp table, CAS, Cisco, HTS, mac-address table, microsoft, NLB, static, VMware

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July 17, 2011  2:37 AM

GRE Tunnel ARP entry never times out! – part 3



Posted by: Sulaiman Syed
ARP, bug, Cisco, clear, CSCsa83049, CSCtf16300, entry, ios, mGRE, TAC, Tunnel, wireless, WLSM

For people who were following on this issue, i would like to post some updates. But before that, you can read what is the problem by going to GRE Tunnel ARP entry...

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May 30, 2011  4:35 AM

GRE Tunnel ARP entry never times out! – part 2



Posted by: Sulaiman Syed
6500, AP, ARP, Cisco, GRE, mn, SUP720, Tunnel, wireless, WLSM

I have been trying to figure out why the APR entries don't timeout as they should do naturally from the tunnels. As it seems, the natural time of 4hr is...


May 24, 2011  5:56 AM

GRE Tunnel ARP entry never times out! – part 1



Posted by: Sulaiman Syed
6500, AP, ARP, Cisco, dhcp, GRE, Tunnel, wireless, WLSM

I would like to clear the ARP entries automatically from the GRE tunnel made by the WLSM to the AP. here are the configurations of the tunnels.

interface Loopback1 description tunnel_source ip address 10.x.x.1 255.255.255.255

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