On October 22, Cisco announced three vulnerabilities in the Cisco ASA 5500 series and PIX Firewall models running software versions 7.x and 8.x. ( See Cisco Security Advisory) The three security issues identified are the following: Windows NT Domain Authentication Bypass Vulnerability Cisco ASA or PIX security appliances configured for IPSec or SSL-based remote access VPNs using Windows […]
Archives for October 2008
Cisco SSL VPN and ASDM Configuration – Port Conflict
In addition to IPSEc VPN support, Cisco firewalls support also the SSL Web VPN technology for providing access to resources for remote users. The main difference between IPSEc VPN and SSL VPN is that the first one requires a VPN client installed on the user’s computer while the SSL VPN requires only a secure browser (HTTPs). Another […]
Cisco Switches with Power over Ethernet PoE
Cisco has been supporting the standardized 802.3af power over ethernet feature since 2004. Catalyst switches with PoE are available as 10/100 PoE or even 10/100/1000 PoE. The Power over Ethernet feature is an excellent option for deployments of Cisco IP Phones. Wireless access points and security cameras can also be powered by PoE switches. The […]
Restricting DMZ server access with time based ACL on ASA
One of the features of Access Control Lists on Cisco ASA firewalls (available also in IOS routers), is that you can schedule when a particular ACL entry is activated. That is, a specific access-list statement will remain disabled until a specific time range is reached. This is useful in cases where you want to allow […]
Administrative Distance of Routing Protocols
Cisco Routers support many dynamic routing protocols for learning routes in a complex network topology. The routing protocols supported are the following: RIP OSPF BGP IS-IS IGRP EIGRP Each routing protocol has its own Administrative Distance (AD), which is a value representing the trustworthiness of the specific routing protocol. If a router learns a destination […]
Average Salary of Cisco Engineers in UK for 2008
According to the site http://www.itjobswatch.co.uk , IT Jobs in 2008 that have requested Cisco Experience and skills for recruitment, are offering an average salary of £41,802 UK Pounds per year. During the same period last year, the average salary was £43,462 (-3.82 % decrease in 2008). This shows that recession is hitting the IT industry […]