Problem If you ever run into the following error messages: %Error copying usbflash0:cat3k_caa-universalk9.SPA.03.06.04.E.152-2.E4.bin (Not enough space on device) or % flash: requires 295884 KB of free space, but only 167160 KB is available. Operation aborted. You’ve run out of disk…
When plugging a workstation, server or PC directly behind a Cisco router, you might notice that you may experience speed problems. Why am I not able to get the full 100Mbps speed? I had run into this problem while deploying…
Cisco EzVPN – EASY VPN A Cisco EZVPN client is basically hardware VPN client that is always ON. It helps simplify deployment of branch locations where their public IP is handed out by a DHCP server and constantly changes. Today…
Problem: How do you clear CLI screen on ASA? Solution: Answer: You CAN’T! In case you came here asking for the clear CLI screen on IOS. Answer: You CAN’T! SecureCRT I wished there was a way to clear the CLI…
HSRP is commonly used as a router failover mechanism, where one router in the group is active and all other group members are in standby. A standby router will take over as the active router when connectivity to the active…
Cisco IPSec VPN tunnels on Cisco IOS routers secures endpoints by forming a tunnel and encrypting the traffic within. Setting up these site to site VPNs can be cumbersome and often involves setting up complicated matching crypto maps on both…
On Cisco IOS, ACLs can be applied in many different types of interfaces. The most commonly used is a Layer 3 interface. This includes physical, logical, or VLAN SVI interfaces that you can assign an IP to. ACLs can be…
The type of cable table Back to the fundamentals. Here’s a quick reference of what type of cable to use in what situation. Most modern networking equipment nowadays have auto MDI/MDIX which automatically detects and switches to cross-over or straight…
Cisco portable product sheets are documents containing Cisco’s summary of various product comparisons and performance specifications. This includes a comparison of all Cisco’s switches switching performance, router routing performance, device VPN and encryption performance numbers, memory guildlines and more. This…
Today I was assigned a task to find out and explain a certain network anomaly we are experiencing in our network. The mission started out to be a bandwidth monitoring task against a specific router. This router however was owned…