Take a Break, I got this! – An EEM Post

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Lately we have been looking at various automation topics like Python where we can do some configuration or grab some output on a few boxes. Today we are going to kick the tires with Cisco’s Embedded Event Manager (EEM), the neat difference with this feature is that it runs directly on the Cisco device so it can run based on events like a command being entered or the router getting a new CDP neighbor.

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What Dark Magic is this?

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 cumulus@cumulus:~$ sudo ifconfig swp1 10.1.2.1/24
 cumulus@cumulus:~$ sudo ifconfig swp1 up
 cumulus@cumulus:~$ sudo vtysh
 
 Hello, this is FRRouting (version 3.1+cl3u1).
 Copyright 1996-2005 Kunihiro Ishiguro, et al.
 
 cumulus# conf t
 cumulus(config)# host CSW01
 CSW01(config)# router 
 babel Make Babel instance command
 bgp BGP information
 eigrp Start EIGRP configuration
 isis ISO IS-IS
 ospf Start OSPF configuration
 ospf6 Open Shortest Path First (OSPF) for IPv6
 rip RIP
 ripng RIPng
 CSW01(config)# router ei 123
 CSW01(config-router)# network 10.1.2.0/24
 CSW01(config-router)# end
 CSW01# show ip eigrp neighbors 
 
 EIGRP neighbors for AS(123)
 
 H Address Interface Hold Uptime SRTT RTO Q Seq 
 (sec) (ms) Cnt Num 
 0 10.1.2.2 swp1 10 0 0 2 0 2

Head in the Clouds – Bridging Fun

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Today we’re going to play with bridging!!! Why are we talking about bridging in 2016 you ask? Well because I’m going to making a few posts as I work my way through the CCNP Cloud certification as well as catching myself up on the new CCIE DC blueprint so I’ll be talking a lot about VXLANs for a least a couple posts. Since bridging is making a come back in L2VPNs and such I figured why not start here? Also I just want to write about something that doesn’t need 50 screenshots 🙂

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Checkpoint – The Gentle SIC Reset

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I found myself in a awkward situation the other weekend where I lost access to Check Point’s internal networks after switching over some networks due to anti-spoofing and after a short adventure of spinning up a new management server in Azure, pointing the firewall to it and pushing a more permissive rule I was back online!!!!

However the problem now was that if I reset the SIC to point it back to the old mgmt station it would do a CPSTOP and CPSTART which would unload the happy policy and I would be back offline and no I could not go onsite!
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