Networking • Automation • Occasional Podcasting

Month: October 2009

  • Cisco ASA IP SLA – Failover Routing
    , ,

    Cisco ASA IP SLA – Failover Routing

    It seems like everytime I want to do something funky with an ASA, Cisco says “ASAs are not routers, use them what they are designed for.” This really doesn’t help me…heh. ASAs can’t do PBR(Policy Based Routing – aka route maps)…which would have been useful more than a few times. Back on topic, failover routing.…

  • ,

    FTP Creating 0 Byte Files

    So Jimmy over at cactiusers.org wrote me a plugin that generates some stuff and FTPs it to another server. My other server was generating some files, but no folders. The files it was generating were 0 byte files…I was scratching my head. I shot Jimmy an message describing the problem. His reponse was “Is your…

  • Mikrotik Netwatch – Kick off a script or email when a host goes down
    ,

    Mikrotik Netwatch – Kick off a script or email when a host goes down

    This post was born out of a question, so see, I do listen…sometimes. hehe The question was, can I ping a host and then have the Mikrotik email me when it goes down/up. The answer is yes. If you use a little tool called netwatch. Tools -> Netwatch An example script you can run is…

  • Mikrotik RB750 Speed Test
    ,

    Mikrotik RB750 Speed Test

    I did some speed testing on my RB750 today. The proof is in the pudding…which is strange that Mikrotiks run on pudding. As you can see I averaged between 40-50% CPU on my 750 and I averaged better than 50Mb of throughput! This test was done with an RB450 and an RB450G on either side…

  • Video Tutorial Cisco ASA – Add L2TP over IPSec VPN to Your ASA and Configure Your Windows Clients to Connect
    ,

    Video Tutorial Cisco ASA – Add L2TP over IPSec VPN to Your ASA and Configure Your Windows Clients to Connect

    Alrighty! Now that 64 bit windows is getting more prevalent, it is getting harder to get the Cisco IPSec client installed. This is because the IPSec client is 32 bit and also needs to install a 32 bit driver, which won’t work on a 64 bit system. Windows 7 does have an XP compaitibility mode…

  • , ,

    Why is Mikrotik Pushing MPLS?

    Funny you should ask yourself that, because I’ve been asking myself the same thing ever since I saw that the feature was added. I personally administer a network that includes a chunk of MPLS, but before then, it was just another buzz word. When I say it contains MPLS I mean we actually do MPLS…

  • Using Asterisk as a Conference Bridge for Your Cisco CallManager
    ,

    Using Asterisk as a Conference Bridge for Your Cisco CallManager

    This is using Trixbox as a web scheduled conference bridge for your Cisco Callmanager. As most of you CCM guys know, CCM comes with a light meet-me conference bridge; you can’t password protect in any way and there are few features. If you want to run the Callmanager conference server, you are looking at somewhere…