Kerry Cordero
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Home» About

About

Kerry Cordero

Sr Computer Network Engineer

I have been in the IT industry for 15+ years. In the beginning, I decided while I was in college to get my MCSE and CCNA. I knew I needed these to get started. I was the youngest person in the class when I took a couple MCSE courses. I was in my teens when I got my NT4.0 MCSE. This exam at the time was HOT. I met people making 100k+ with their MCSE and experience. I also got my CCNA around the same time. For awhile I was doing both Microsoft and Cisco work. I ended up getting my MCSE 2003 and CCNP along with the Cisco Specialist Firewall and VPN cert years later. I started to do more and more Cisco work and loved it. I found myself going Cisco full time. I have been doing Network Engineering work for 10+ years now. I’ve been fortunate to work for and gain great experience with large companies like FPL (15k Employees), BE Aerospace (World Wide 5k+ Employees), Kintetsu World Express (World Wide 10k Employees), and Broward County (1k – 10k Employees).

Certifications

  • Cisco Certified Network Professional (CCNP)
  • Cisco Certified Network Professional Security (CCNP – Security)
  • Cisco Certified Internetwork Expert (CCIE Written)
  • Cisco Certified Network Associate (CCNA)
  • Cisco Certified Network Associate Security (CCNA – Security)
  • Cisco Specialist: Firewall, VPN, and IPS
  • 4013 Recognition National Security Agency (NSA) and the Committee on National Security Systems (CNSS)
  • 4011 Recognition National Security Agency (NSA) and the Committee on National Security Systems (CNSS)
  • Microsoft Certified Systems Administrator (MCSA)
  • Microsoft Certified Systems Engineer (MCSE)

Core Networking Skills

Networking Hardware

Routers:
Cisco (IOS, CatOS), Juniper M-Series (JUNOS), Linksys (now Cisco), Netgear

Switches:
Cisco Catalyst (6500, 4500, 3750E, 3600/3500, 2900′s)

Load Balancers / Application Network Services:
Cisco CSS, Cisco ACE (Application Control Engine Module), Cisco GSS

Firewalls:
Checkpoint, Cisco PIX / ASA Firewall, Sonicwall

Security

Security / Firewalls / Web & Email Security:
SecureAuth Two-factor authentication, SecureComputing Two-factor authentication, SSH, IPSec, VPNs, Cryptography, Key Management, AAA Model (RADIUS, TACACS+, Kerberos), Cisco CAR RADIUS Proxy, Cisco Autentication Proxy, Access Lists, IOS Firewall, 802.1x, IOS Security Features, DMZ set ups, CBAC, DoS and common threats prevention, Cisco IDS / IPS (Intrusion Detection / Prevention System), Certificate Authority (CA), PKI, Cisco Secure ACS Server, Cisco VPN Concentrator, Cisco PIX / ASA Firewall, VPN Client, Cisco Security Manager (CSM), Checkpoint, Linux IPTables, Sophos Web Appliance, WebSense, TrendMicro InterScan™ Messaging Security Suite

Routing

Routing:
Static Routing, RIPv1, RIPv2, RIPnG, IGRP, EIGRP, OSPF, BGPv4, ODR, GRE, MPLS, IPv6, Traffic Engineering, Policy Based Routing PBR, Route Filtering, Redistribution, Summarization

Switching

Switching & Bridging:
Catalyst CatOS and IOS based Switches, VTP, STP, RSTP, Trunking, VLANs, Layer 3 Switches, Logical Etherchannels, Transparent Bridging, IRB, CRB, DLSW+, MLS

LAN:

Media:
Ethernet, FastEthernet, GigabitEthernet, Fiber (SC/ST/LC)

Network Analyzers:
Wireshark, Snort, and others

Load Generators:
iperf

WLAN (Wireless LAN):

Cisco Aironet APs and Bridges (350, 1010, 1100, 1200, 1300, 1400, 1500), 802.11a, 802.11b and 802.11g standards, WLAN antennas, WLAN Security (“WEP”, WPA, WPA2 / 802.1x, EAP, PEAP, LEAP, TKIP, AES/CCMP), Netgear APs, Linksys APs

WAN:

Lines:
Leased lines 64k – 155Mb (PPP / HDLC), Channelized lines (E1 / T1 / E3 / T3), Fibre Optic Circuits up to OC-12 speed, Frame Relay, ATM, ISDN, Load Balancing, Multi Homing

Various Features & Services:

IOS and CatOS Features, HSRP, IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, DNS, HTTP, TFTP and FTP Management, IPv6 test projects, RAS Solutions, Cisco CNR (DNS & DHCP server)

QoS (Quality of Service):
WRED, Queuing features, FRTP, CAR, RTP, MLS QoS, LLQ, Policy Based Routing, CBWFQ

Multicast:
Sparse-Mode, Dense-Mode, Sparse-Dense-Mode, IGMP, CGMP, Rendezvous Points.

VoIP (Voice over IP) / IPT (IP Telephony):
IP Telephony utilizing Cisco routers, QoS implementation

Network Monitoring and Management Systems:
Cisco Works Suite, Solarwinds Orion Suite, What’sUp, MRTG, Naigos

Ticketing Systems:
Helpstar, osTicket, Redmine, SpiceWorks

ISP (Internet Service Provider) related:
Registry Handling with RIPE, ARIN, AP-NIC, DNS handling with various NICs

General IT Skills:

Hardware:
PC, Laptop, and Server hardware

Software:
MS-Office Package (Word, Excel, Powerpoint, Outlook etc.), MS-Frontpage, MS-Visio, Omnigraffle

Desktop Operating Systems:
MS-DOS, DR-DOS, Windows 3.x, Windows 95/98/ME, Windows NT/2K/XP/7/2003/2008, MAC OS

Client / Server Architecture:
Microsoft Active Directory

Server – Multiuser / Multitasking Architecture:
Web, Mail, FTP, TFTP, DNS, WINS

Server – Microsoft based:
Setup, Operation and Maintenance of WIN NT 4.0, WIN 2K, WIN 2K3/2k8 Server

(c) 2012 Kerry Cordero