Monthly Archives: September 2019

Cisco Dynamic L2L VPN setup

Posted on September 26, 2019 by danmassey99

Todays challenge is to set up an L2L VPN tunnel between an Cisco ASA running IKEv1 and Cisco 927 with a dynamic IP address. The 927 is behind a NAT firewall so needs to be managed through the tunnel so … Continue reading →

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Juniper VRRP setup

Posted on September 22, 2019 by danmassey99

I know Cisco support VRRP and GRRP but I’ve always used HSRP as my redundant gateway of choice. In the scope of the JN0-348 the only redundant gateway is VRRP (Virtual Router Redundancy Protocol). Its similar to HSRP so should … Continue reading →

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Juniper SRX – I just want a router!

Posted on September 22, 2019 by danmassey99

Working on the JN0-348 exam prep requires a router or two for BGP, IS-IS and other stuff that is not supported on an EX switch. Step forward the SRX 320 firewall which does all the good stuff and has a … Continue reading →

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Juniper Switch Security pt 1 – DHCP Snooping

Posted on September 21, 2019 by danmassey99

Full disclosure I’m on the ELS platform so the old fashioned ‘easy way’ is not available here. The task is to secure the switch using DHCP Snooping to protect ourselves against rogue DHCP servers popping up. When the feature is … Continue reading →

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Juniper Redundant Trunk Groups

Posted on September 17, 2019 by danmassey99

After the success of the LAG configuration comes the RTG or Redundant Trunk Group. This seems to be similar to using a Cisco backup interface. On a stacked switch setup like a c3850 or c3750 you would definitely used a … Continue reading →

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Juniper LAG (Etherchannel)

Posted on September 15, 2019 by danmassey99

Coming from a Cisco background its seems unnecessarily difficult and complicated to set up a couple of ports into an ether channel configuration on my pair of test Juniper EX2300s. That said the test for the JNCIS-ENT is looming so … Continue reading →

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