Tag Archives: Juniper

Juniper EX switches – those error lights!

When we spin up a new EX 2200 switch the Alarm light always comes on. This post shows how to trace the issue and fix the problem. Then hopefully your switch will not have that annoying/alarming red/amber light on it … Continue reading

Posted in Juniper | Tagged , , | Comments Off on Juniper EX switches – those error lights!

Juniper SRX ADSL setup with Draytek 130 Modem

The next challenge is to add a second DSL account onto the same SRX110 or in the case of the SRX300 just add a DSL connection. The SRX300 has no PIM slots so cannot get a DSL card added. The … Continue reading

Posted in Juniper | Tagged , , , , , | Comments Off on Juniper SRX ADSL setup with Draytek 130 Modem

Juniper SRX ADSL setup

This is the first post on WAN connection setups. I’ll be using and SRX110 was it has a built in ADSL/VDSL port. I’ll be connecting to a dynamic IP ADSL service based in the UK. The service is a BT … Continue reading

Posted in Juniper | Tagged , , , | Comments Off on Juniper SRX ADSL setup

Juniper VRRP setup

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

Posted in Juniper | Tagged , , , | Comments Off on Juniper VRRP setup

Juniper SRX – I just want a router!

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

Posted in Juniper | Tagged , , , | Comments Off on Juniper SRX – I just want a router!

Juniper Switch Security pt 1 – DHCP Snooping

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

Posted in Juniper | Tagged , , , , , | Comments Off on Juniper Switch Security pt 1 – DHCP Snooping

Juniper Redundant Trunk Groups

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

Posted in Juniper | Tagged , , | Comments Off on Juniper Redundant Trunk Groups

Juniper LAG (Etherchannel)

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

Posted in Juniper | Tagged , , , , | Comments Off on Juniper LAG (Etherchannel)