Tag Archives: Cisco

Cisco ASA Default SSL Broken

Just a note that out of the box, recent Cisco ASA hardware with new ASA software releases ships with broken SSL. This prevents the ASDM GUI (Advanced Security Device Manager) from functioning. To correct the problem, you must force the … Continue reading

Posted in Networking | Tagged , , , | 4 Comments

Cisco IOS *Not* Secure By Default

This should not be a surprise to other network administrators out there, but the Cisco IOS network device operating system is *not* secure by default. You need to make sure to take extra steps to lock your device down for … Continue reading

Posted in Networking | Tagged , , , , | Leave a comment

Cisco WAP4410N Setup

This is a brief note for initial setup of a Cisco Small Business Wireless Access Point (WAP) model WAP4410N. Default WAP IP and Mask: 192.168.1.245 mask 255.255.255.0 (/24) NOTE: If the WAP sees a DHCP server, it will get a … Continue reading

Posted in Networking | Tagged , , , | 2 Comments

Recent IPv6 Features for Cisco IOS

As more companies begin planning for an upcoming IPv6 transition, it is helpful to review the status of software IPv6 support from your network vendor. Here I will attempt to list a few recent updates in Cisco IOS that may … Continue reading

Posted in Networking | Tagged , , | Leave a comment

Recent IPv6 Updates for Cisco ASA

Cisco is constantly updating the software for their ASA firewall product line. Recent features in 9.x provide more full-featured support for native IPv6 features. Here are some brief highlights: Cisco ASA 9.x – AnyConnect VPN Client over SSL (IPv6 client … Continue reading

Posted in Networking | Tagged , , , | Leave a comment

Cisco CCNA Program Changes

The uber-popular Cisco CCNA certification program is undergoing some small but important changes to the certification process this year (2013). If you’re planning to take the test, or already have a voucher – you may need to take the legacy … Continue reading

Posted in Networking | Tagged , , , , , | Leave a comment

Quick Save of Cisco IOS Running Config

I’ve seen Cisco support use this technique over the phone a few times and think it is useful enough to post here for quick reference. The scenario is that you have terminal access (possibly via serial console) to a Cisco … Continue reading

Posted in Networking | Tagged , , | Leave a comment

Cisco IOS SSH Server

Security-minded network administrators like to manage network equipment using encrypted protocols such as SSH. Cisco IOS routers and switches often require extra configuration to enable SSH. As always, refer to official Cisco IOS SSH documentation for a much more authoritative … Continue reading

Posted in Uncategorized | Tagged , , , , | Leave a comment

DHCP Server in Cisco IOS

Cisco IOS provides a basic DHCP server that can be useful for testing or small networks. If you’re in an Active Directory environment I recommend providing DHCP service from your domain controller systems and using the “ip helper-address” command (dhcp … Continue reading

Posted in Networking | Tagged , , , | Leave a comment

Cisco ASA QOS

It may be desirable to rate-limit traffic to various hosts or subnets on your network. The Cisco ASA has some very limited QOS capabilities built in (better QOS features are available on Cisco IOS routers). To apply a basic rate … Continue reading

Posted in Networking | Tagged , , , | Leave a comment