Juniper SRX – BAD_DUDES

Whilst completing my studies for the JNCIA-Junos exam I was trying various configuration on my SRX110 and decided to expose it to the internet as my LAN 'DMZ host', after a little while I noticed the log filling up with messages like these: Feb 14 11:24:24 2018 CS7-SRX01 sshd: SSHD_LOGIN_FAILED: Login failed for user 'root'... Continue Reading →

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Out with the old, in with the…same

After a recent spate of hardware lock-ups and random reloads I decided to replace my ASA5505. It was the first cisco device I ever purchased and set me on my networking career, but it was playing up so I decided to swap it out for a Juniper SRX110H2-VA. As far as I can tell they... Continue Reading →

tunnel VRF

This post came about after answering a question on CSC regarding tunnels and VRF, and will elaborate on the the use case I suggested. Imagine two sites with multiple VRFs which need to communicate intra-VRF over a public WAN, lets run through the configuration options: Option A Each VRF would require a public IP which... Continue Reading →

Cisco WLC Mobility Groups

Cisco WLC Mobility Groups - Data Path down/ Control Path down Cisco Mobility Group – Anchor : Data Path Down The path of the mobility group EtherIP tunnel between WLCs passes through a single CheckPoint firewall (R77.20), requiring that rules be defined to allow UDP/16666 and TCP/97 traffic to and from the WLCs. I created... Continue Reading →

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