GET VPN (GNS3 Lab)

Group Encrypted Transport (GET) VPN is slightly different and has quite different use cases from more traditional point to point IPSEC VPN where each point to point VPN is quite distinct in its own right. The most import thing to…

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Simple script to add route to exaBGP

Continuing to play around with the very fine exaBGP. This time adding my own little script to announce a new route and reload the exaBGP config to announce the new prefix ūüôā Please note this script makes use of another…

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Generate DSCP marked pings

Today it was useful to confirm a switch was passing DSCP marked packets as expected and handling ‘ef’ marked packets. To do this on a cisco switch we can use the extended ping feature and set the Type of Service…

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SNMP ACL (after community check?!)

Not my usual kind of post of “how to do …blah” but something I’d come across yesterday that was a little interesting/annoying/silly. Best¬†practice¬†dictates you apply an ACL to your SNMP config so only configured hosts can poll a router/switch even…

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Simple script to reload exaBGP config

Recently started to look at exabgp¬†as a tool to inject routes for a RTBH setup. Works nicely so far so made the following simple script to reload the config after changes so they take effect. This was made using exabgp…

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