Running ASA 8.02K8 inside of the gns3 on win 7 professsional 32bit caused, that console is hanging and did not answer, stay clear.
This article continue on series of articles about the Kamailio 3.1.x SIP proxy deployed on debian lenny and its features. In previous articles we have:
In this article I will configure reflexive ACL. This technique is described during CCNA4 Exploration, and I'm using it during the lab exercises.
About Reflexive ACL (IP session filtering)
Description from the cisco web, regarding IOS 15.1.
http://www.cisco.com/en/US/docs/ios/12_4t/12_4t11/ht_rawip.html
Cisco switches provides SPAN and RSPAN feature which is suitable for monitoring and capturing packets flowing through switch ports or VLANs. But this feature is not provided on Cisco routers, therefore if you look for it there is not result.
Sometimes we need to capture and parse OSPF packets for next analysis and we have a comand line only, in my case on linux server with dynamips. We should use tcpdump tool for this purpose, of course, several ways are available.
Capturing OSPF packets on the fly
If we have access to config mode we may type
config t configure factory-default
Cisco releases some files (firmware, language files, ...) as .cop.sgn files. And sometimes, you need to uncompress it and reach files in this archive. "sgn" means, it is signed. Actually, there is only authentication header, which can be removed by editor. For Linux, we can use Bless hex editor. Open file in editor, and find pattern '1F 8B 08'.
Very important thing is, that your IP phone has to have letter "G" in its name. For example "Cisco Unified IP Phone 7970G" or "7960G". Letter "G" means, that phone is "global", and also support other laguages than english.
Do not confuse it with "GE". This means "giabit ethernet". If phone support both, there is "G-GE" on the phone.
Once we had a pre-shared key configured, we are not able to see them directly applying show running command, as the key is encrypted. The output displayed it as *******.
Example: