Category Archives: Cisco

Cisco ASA Site to Site VPN with dynamic IP addresses

Today’s problem is a new customer office opening ahead of their scheduled MPLS installation. We need to connect them back into their VPN via their existing hosted Cisco ASA. The internet connection at the new office is at this point … Continue reading

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Basic WebVPN setup on the Cisco ASA 9.x

We have resisted the change for a long time, bit its time to finally move some of our customers over to the SSL VPN who were previously using the IPSec Remote Access VPN. Windows 10 does not support the IPSec client … Continue reading

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Cisco periodic reboot using perl

A request to reboot a Cisco ASA every week came in today. Under Cisco IOS there is a kron which would accommodate us here, however there appears to be no such thing under the ASA OS (is it still called … Continue reading

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Converting Cisco 877 from ADSL to FTTC

Normally when we deploy FTTC to a client in an MPLS VPN we use the Cisco 887 and bypass the BT installed VDSL modem. On this occasion the client is already fully kitted out with Cisco 877 routers and is … Continue reading

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PPP Multilinking over ADSL

Well the broadband where I live is shocking. Although its now managed to creep up to a staggering 6mbps, it still well below what I’d hope for in todays world. On the bright side its quiet and we overlook countryside, … Continue reading

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Fun (?!) with Cisco OSPF part 1

There are several factors involved in successfully forming an OSPF neighbourship, these are: Must pass the authentication process Must be in the same subnet with a matching mask Must be in the same OSPF area Stub flag must match Unique … Continue reading

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Setting up Syslog on FreeBSD 9.1 for Cisco

Just a quick note on how to make a syslog server to collect Cisco logging messages. From a fresh installation of FreeBSD 9.1 1. Allow syslogd to accept connections from anywhere (I use an external firewall to limit access) echo … Continue reading

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Creating SSH keys on a Cisco PIX (how retro!)

Today I was faced with replacing an old Cisco PIX 515 (not the 515E) with another equally old Cisco PIX 515, equipped with a mighty 32MB RAM and only capable of single DES. With its FOS 6.4 operating system compiled … Continue reading

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Cisco PPP Revision Lab

Another day of ongoing study brings me to the ‘Wide Area Network’ topics such as Frame-Relay and PPP. I’m using GNS3 which makes the whole process a bit easier to demonstrate the concepts and help it become less theoretical and … Continue reading

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Are Cisco moving EIGRP into the public domain?

It looks as if Cisco may be moving their proprietary distance vector based EIGRP into the public domain. EIGRP is quick and easy to deploy, but is only available on Cisco devices – Maybe this will make it more popular? … Continue reading

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