You may not know that your network has any issues until you add VoIP traffic to it. This is because VoIP traffic is much more sensitive to latency, jitter and packet loss than typical network applications. So how do you adjust your network to accommodate this new VoIP traffic? Let’s find out.
On my wall, I have a very nice Cisco poster.
It is a great resource if you are not sure what Router or Switch model you need (or even just to look like the coolest Cisco-guy in the office).
With this, you can quickly and easily identify what you need.
This quick reference poster provides information on model capacities, interface cards and available features…and it’s free!
On my wall, I have a very nice Cisco poster.
It is a great resource if you are not sure what Router or Switch model you need (or even just to look like the coolest Cisco-guy in the office).
With this, you can quickly and easily identify what you need.
This quick reference poster provides information on model capacities, interface cards and available features…and it’s free!
This poster is mailed out free from a Cisco reseller called World Data Products.
If you are interested in requesting this free Cisco poster for your wall, you can obtain it by clicking here.
If you are using the Cisco VPN client you should really take note of this. A serious vulnerability has been found by the folks over at NGS Software and Cisco has released a vulnerability advisory regarding Cisco VPN Client. For more information, read on….
Cisco APs are strong and reliable but require a little more configuration than your typical Linksys, Dlink, or Netgear. In this article, you will find out how to configure this enterprise grade wireless AP (a Cisco 1242G) to allow your wireless users to connect to your LAN, through your Wireless LAN (WLAN). Lots of photos are included!
I sat down and tried to make a list of, what I considered to
be, the 15 best network management utilities that I had ever seen. Here is that
list. What do you think? Post your comments on our website!
3. PRTG – Free bandwidth graphing application for Windows
4. Boson GetPass, Cisco Password Decoder, and Cisco Password Cracker – all Cisco Level 7 Password Decryption Tools
5. Cain and Able Security Audit
5.5. Train Signal Video CBT training
But wait, there are 10 more to go…..
I consider myself fortunate to run across a new program called the Cisco ACL Editor and Simulator. This program allows you to create ACLs in Windows GUI application by filling out fields on a form. Even better, it allows you to then take that ACL and simulate what traffic would pass through the ACL. This way, you can test your ACL’s before you apply them, saving a huge amount of time and effort.
Recently, I created a short video that shows you how to secure your Cisco router using Access-control lists (ACL) in the Cisco IOS. It is a step-by-step ten-minute video. It was originally published over at SearchNetworking.com.
In this video, I walk you through the steps you’ll need to take to use Cisco IOS access control lists (ACLs) to define and filter traffic for better network security.
I recommend Train Signal Cisco CCNA Video Training!
[viddler]4cd2cbe5[/viddler]
Here is my network diagram (click on it to enlarge it):
Here is the actual ACL used in the video:
! SAMPLE ACL
!
!Notes-
!DNS resolution must be happening locally
!Default gateways must be configured on each side of the network
!If you were doing this between a LAN and the Internet, you would have NAT to
take into account
!Reflexive access-lists or firewall features can be used to improve on this
ip access-list extended less-secure
remark allow all hosts on 10 net to access web server
permit tcp 10.1.1.0 0.0.0.255 host 192.168.1.200 eq www
permit tcp 10.1.1.0 0.0.0.255 host 192.168.1.200 eq 443
remark allow RESPONSE to secure PC’s requets for access to web, ftp control,
data, smtp, and pop3 on 10 net
permit tcp 10.1.1.0 0.0.0.255 eq www host 192.168.1.201
permit tcp 10.1.1.0 0.0.0.255 eq ftp host 192.168.1.201
permit tcp 10.1.1.0 0.0.0.255 eq ftp-data host 192.168.1.201
permit tcp 10.1.1.0 0.0.0.255 eq smtp host 192.168.1.201
permit tcp 10.1.1.0 0.0.0.255 eq pop3 host 192.168.1.201
ip access-list extended more-secure
remark allow web server to respond to all hosts on 10 net
permit tcp host 192.168.1.200 eq www 10.1.1.0 0.0.0.255
permit tcp host 192.168.1.200 eq 443 10.1.1.0 0.0.0.255
remark allow PC full access to make requests to less secure network
permit tcp host 192.168.1.201 10.1.1.0 0.0.0.255
int fa4
ip access-group less-secure in
int vlan1
ip access-group more-secure in
Recently, I created a short video that shows you how to upgrade the Cisco Internetwork Operating System (IOS). It is a step-by-step eight-minute video. It was originally published over at SearchNetworking.com.
In this video, I walk you through the IOS upgrade, including router configuration, and provide advice on what you’ll need to get started.
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So you need some bandwidth? It could be voice, private line/MPLS, or Internet bandwidth. Who are you going to call?
Don’t waste your time calling every carrier out there and try to compare the pricing yourself. Trust me, I’ve been there, you could spend the next six months doing that.
Happy Router .com has partnered with a reliable and honest telecom partner. I have used this partner myself for T1, DS3, Internet, MPLS, Long distance, and local services.
How does this work? Fill out this form. Your information will be passed to our partner. They will listen to your needs and contact ALL the carriers to get you a competitive quote (including local loops) fast. They can also manage the installation process and even manage the network after it is installed.
Give them a try, your contact details remain confidential, you’ve nothing to lose!
*Please note that our partner only provides services in the USA and only to businesses **
To receive more information, visit our Quote Voice & Data T1 Bandwidth Form.
On July 24, 2007 Cisco CEO, made his keynote address at the 18th annual Cisco Networkers
conference. This year, the conference is dubbed "Cisco Live 2007" and it was
held in Anaheim, California.
John Chambers talked about Cisco's vision for next-generation data centers,
called. According to Cisco, "the Cisco vision for Data Center 3.0
entails the real-time, dynamic orchestration of infrastructure services from
shared pools of virtualized server, storage and network resources, while
optimizing application performance, service levels, efficiency and
collaboration."
Thanks to my colleague, Mr Pile, I bring you exclusive high resolution photos
that were taken "up close and personal".
Check them out!
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