Configuring Cisco HSRP
KB ID 0000946 Problem Cisco HSRP: Normally your client machines have one route off the network, (their default gateway). But what if that goes down? HSRP aims to solve this problem by assigning a ‘Virtual IP address’ to your default gateway (or default route). So that IP can be shared amongst two or more possible devices (routers, or layer 3 switches). Above, we have a client 192.168.1.10 that has two possible routes off...
Window Server – Configuring NIC Teaming
KB ID 0000786 Problem One great new feature of Server is bult in network ‘Teaming’. To do this normally takes some third party software, either form the server vendor (HP Teaming) or from the NIC manufacturer. It utilises a new Windows feature called LBFO, this lets you both aggregate links, and have links available in the event of failover. Note: NIC Teaming only supports up to 32 network cards. Solution 1. Launch Server...
Juniper SRX – ‘The Routing Subsystem Is Not Running’
KB ID 0001045 Problem While trying to deploy Solarwinds to monitor a Juniper SRX failover cluster, we were having no joy connecting to the management interface of the secondary/standby firewall. The management (fxp0) interface on the primary (node0) firewall we could get to OK. ] After jumping on the secondary firewall (via the console connection) we observed the following; error: the routing subsystem is not running Solution As you...
Cisco CSC – Upgrade the Operating System
KB ID 0000807 Problem Upgrading the operating system on the CSC module is pretty straight forward, as long as you have a valid support agreement for your hardware and a CCO account you can download the updates straight from Cisco (here). Solution WARNING: It’s rare that you can update straight to the latest version, by all means try, and the CSC module will simply error if it will not accept the version you are trying to update...
ASA 5505 Determine Your License Version
KB ID 0000701 Problem If you are having problems with internal clients NOT getting through the firewall, the license on your ASA 5505 may be ‘to small’. ASA 5505 License Differences Essentially the licenses come in 10 user, 50 user, and unlimited*. You can also have a Security Plus License, this increases IPSEC VPN’s from 10 to 25, and adds Active/Standby failover, Dual ISP Support, and DMZ Support. *Note: These...