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August 2012

Help with routing question between many routers in GNS3 BGP

Wed, 2012-08-01 19:37

I am trying to advertise an address block  via BGP and I am mimicking our internet connection. 
Here are some images
Here is the GNS3 diagram.. 
http://www.cs.sunyit.edu/~gibbsj/network.png

R1 Config

R1#show run
Building configuration...

Current configuration : 1348 bytes
!
upgrade fpd auto
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
!
no aaa new-model
ip source-route
ip cef
!
!
!
!
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!

H3C S5800 ACL

Thu, 2012-08-02 12:09

hello,
i need to configure ACL on HP S5800 and apply it on SVI. here is some configuration:
...
acl number 3000
 hardware-count enable
 rule 0 deny ip source any
...
interface Vlan-interface991
 ip address 192.168.1.1 255.255.255.0
 packet-filter 3000 inbound
...
now, why i can still ping 192.168.1.1 though i can't ping behind this interface?
thanks,

STP and CAM table question.

Sat, 2012-08-04 10:04

Hi All, I am currently studying CCNA in preparation for the exam and came accross over Jeremy's CBT nuggets. In his topic about STP, I was just wonderng, switches have a CAM table right? So even if you have a redundant link, you can prevent packet loops because as soon as the switch builts its CAM table, it should be forwarding traffic directly to the destination. So why is the need for STP if this is the case? Thanks in advance.

Policy-Based Routing Lab

Mon, 2012-08-06 14:10

Hey guys & Jeremy,
|Ignore my message.|

Fiber optic cable labeling standard

Tue, 2012-08-07 13:22

Does anyone have a good suggestion or is there a standard for labeling fiber optic cable?  
I came across this but it looks rather difficult for my needs(link below).  We have several buildings with many fiber terminations.  Any suggestions?  Thanks!
http://net-services.ufl.edu/infrastructure/labelstandardhorizontal.htm

Cisco Easy VPN Configuration in GNS3 .. Help

Tue, 2012-08-07 13:48

HI All!!!
I have 20mbps internet connection and i want to share it with remote users.
could it be possible to setup a easy VPN server in GNS3 router and allow users to connect via vpn client?
Please guide me if u have any other alternative for my problem.
Thank You

640-554 IINS

Wed, 2012-08-08 00:01

Hi!
What are the recommended materials for 640-554 IINS ?

br 
oka

EEM to execute a CLI Command every 15 minutes

Thu, 2012-08-09 12:00

Hello everybody, I am new in EEM please help me with a link where I can find tutorials.

I got this problem: I want to execute a CLI Command every 15 minutes for example, and to send that to an FTP Server.

If someone can help me please answer.

Robotic Plane Avoids Walls

Thu, 2012-08-09 20:47

Robotics is an area of technology that both fascinates me and frightens me at the same time. Although it would be cool to have a robot that is self sufficient enough that it could do things for me, it's also scary to think what someone else's robot would be told to do (images of the terminator come to mind).

I found this video while reading the news. It demonstrates the use of some insane mathematical computations in the form of a remote control airplane that makes corrections to it's flight path to avoid obstacles. Watch the video to see for yourself (requires flash)...

ISDN PRI simulator

Wed, 2012-08-15 11:14

I was wondering if any one has used one of the T1 simulators out there.  example:2 Port T1/E1/PRI ISDN Simulator from v console?

CCIE Salaries

Thu, 2012-08-16 07:35
cash_pile.JPG

It's been about a year and a half since I posted a CCIE Salary blog post. The data is readily available with some searching, but I figured I'd post it here for reference.

Much of this data is collected based on individuals filling out questionnaires and surveys. The sample sizes aren't huge, but then again, there aren't that many CCIEs on the planet. As always, there are certainly some outlying data points that would skew this data set if included. I've heard of contractors with CCIE certifications making several hundred thousand a year. Those types of positions are few and far between, and for those of you landing gigs like that - congratulations! So without further adieu, here's the data..

Cisco C6506 switch IOS and 1841 router

Sat, 2012-08-25 06:27

Hi,
I have a Cisco Catalyst C6506 that is presently in rommon mode. Twice, I tried reloading the IOS using xmodem via console but the transfer stops halfway, what could be the cause?
I inserted the flash of the Cisco Catalyst C6506 into an 1841 router with the intention to upload the IOS into the flash and transfer to the router, but the 1841 router seemed to freeze with with the 1GB flash and has refused to boot properly even after it's original flash was replaced. 
Kindly advice on how the devices can be restored to normal operation. Thanks.

mGRE and NHRP code 4 (administratively prohibited)

Tue, 2012-08-28 10:12

Hello,

I would appreciate A LOT some help on this topic... i already have other options to implement the requirement but i would love to know what is happening here...

 
I am implementing a mGRE tunnel between 4 locations (routers):
r7200 - Hub and NHS = ip 10.0.78.1
r1841 - Spoke = 10.0.78.2
r1841 - Spoke = 10.0.78.3
r871 - Spoke = 10.0.78.4
 
the mGRE Tunnels are configure as follows:
 

r7200 - 10.0.78.1

 
interface Tunnel78
ip address 10.0.78.1 255.255.255.248
no ip redirects
ip nhrp authentication xxx
ip nhrp responder Loopback0

CCIE VOICE EQUIPMENT SETUP AND VIDEO

Thu, 2012-08-30 19:23

Hi Jeremy, my name is Benedict but my friends calls me meherthegeek simply i know how to make things works in the IT realm. I have embark on a massive one year journey in attaining ccna voice, ccnp voice and ccie voice certification within one year, i have bought most of the equipment and my problem is how to simulate a PSTN connection to the cloud.However, everybody knows you are a nerd in the voice realm so i will plead on your behalf to come out with a series or a video detailing how to address the ccie home voice lab setup. In wrapping up with my suggestions i  will like to know your views about the new ccnp voice exams since the old exams as been discontinued by cisco thank you.

Cisco to Non-Cisco(DHCP) VPN Advise

Fri, 2012-08-31 01:09

Hi

I would like to start a discussion on the best way to implement Site to Site VPN's in a non standard networking environment.

At the moment we have a Cisco 2911 ISR at our Head Quarters building set up as a zone based firewall. This router has a static public IP address. We then have a number of small office using Draytek 2820 routers with a dynamic public IP address. The Draytek routers dial into the Cisco router to create a site to site VPN. We have the Tunnels set up using a Crypto Maps.

This seems to work OK to start with but the more tunnels we add the more unstable it seems to become and then tunnels seem to drop out and not come back up.

What do other people recommend for this type of situation?

Cabling a house - CMP vs CMR CAT6 Cable

Fri, 2012-08-31 20:57

I'm planning on wiring a house for Cat6 cabling and I'm wondering if I need to use CMR (riser rated) or CMP (plenum rated) cabling. This is a single story house and the cable will be run through the attic and in the walls.

Do I have to use plenum or can I use the riser rated? Does the plenum rated hold up to high-heat attics or are they the same except in how they burn?

Thanks!



Dr. Radut