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Friday, February 2 2007

%Error opening tftp 255.255.255.255 network-confg

Just playing with my 2600 and try to upgrade IOS to support 3DES in order to test IPSEC/VPN connexion and got some kind of message like that :

%Error opening tftp://255.255.255.255/network-confg

%Error opening tftp://255.255.255.255/network-confg


To disable it:

VPN-CLI#c
Enter configuration commands, one per line.  End with CNTL/Z.
VPN-CLI(config)#no ser
VPN-CLI(config)#no service ?
  alignment              Control alignment correction and logging
  compress-config        Compress the nvram configuration file
  config                 TFTP load config files
  dhcp                   Enable DHCP server and relay agent
VPN-CLI(config)#no service config
VPN-CLI(config)#^Z
VPN-CLI#wr
Building configuration...

*Mar  1 00:32:37.568: %SYS-5-CONFIG_I: Configured from console by console[OK]
VPN-CLI#

502 Server Error

I was on google at  NY Time : 6:30:06 PM EST or Paris time : Friday, February 2, 2007 at 12:30:50 AM CET, and I got a for 10 min now  :

Google    
Error
 

Server Error

The server encountered a temporary error and could not complete your request.

Please try again in 30 seconds.



It seem that google upgrade some stuff  ???
here the full screen:


Tuesday, January 30 2007

Virus PC !!!! Funny video

That's it, Vista is released

:) French time

Tuesday, January 23 2007

Google IG rss Preview

Google personalized homepage got a new feature, the rss widget allow to make a preview of the article :


Quite a nice feature !

//

Monday, January 15 2007

27 years Old ....


Well today I got my 27 years, I just feel like I am more near than far of the 30 ...
Anyway I love my familly, love my girlfriends, love my job, have good health :)
My resolution of my 27 ? relax and then got nolife to get the CCIE R&S before my 30 :)

Continue reading...

Tuesday, January 9 2007

An old article about the ICMP's bug

3 old bug about ICMP found by Fernando Gont :
  • "Hard" ICMP Errors
  • Source Quenching
  • Path MTU Discovery

the full story hEre

Continue reading...

Tuesday, December 26 2006

Definitions


DWDM: Dense Wavelength Division Multiplexing

Dense wavelength division multiplexing (DWDM) is a fiber-optic transmission technique that employs light wavelengths to transmit data parallel-by-bit or serial-by-character.

DMVPN : Dynamic Mutilpoint Virtual Private Network

MDRR: Modified Deficit Round Robin

WRED: Weighted Random Early Detection

WCCP : Web Cache Communication Protocol ( Cisco )

it specifies interactions between one or more routers (or Layer 3 switches) and one or more web-caches. The purpose of the interaction is to establish and maintain the transparent redirection of selected types of traffic flowing through a group of routers. The selected traffic is redirected to a group of web-caches with the aim of optimizing resource usage and lowering response times.

DSCP : Differentiated Services Code Point ( rfc 2474 )

it is an integer encoded in the DS field  of an IP packet header that enables different levels of service to be assigned to network traffic.

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Monday, December 18 2006

100 shortcut

From here

CTRL+C (Copy)

CTRL+X (Cut)

CTRL+V (Paste)

CTRL+Z (Undo)

DELETE (Delete)

SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle Bin)

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Friday, December 15 2006

Graphing Cisco Systems (NBAR) Network-based application recognition with MRTG

Link : Here

Continue reading...

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