Building up a Cisco mobility express environment

First, order a new PoE+ Injector with 30 Watt output (IEEE 802.3at) -.- after some hours, not seeing the SSID, I figured out that the new 2800 and 3800 access points won’t start their radio-interfaces if the AP doesn’t get enough power. You can convert any controller-based access point to a “configurable” (formerly (autonomous) by changing … Read moreBuilding up a Cisco mobility express environment

Cisco Telnet hack available :)

Ok… cracking is bad… but enabling telnet is worse! “Cisco is warning of a new critical zero-day IOS / IOS XE vulnerability that affects more than 300 of its switch models. The company identified this highest level of vulnerability in its product while analyzing “Vault 7” — a roughly 8,761 documents and files leaked by … Read moreCisco Telnet hack available 🙂

Ekahau Site Survey version 8.7.0 released!

Ekahau released a new version of their brilliant site survey tool. You can find the download here. Changelog Version 8.7.0 Copy & paste Wi-Fi planning (predictive design) elements: APs, walls, floor alignment points, etc. Adjust heatmap opacity to make the floor plan more visible Quick AP coverage toggling Selecting an access point on the map … Read moreEkahau Site Survey version 8.7.0 released!

Using 40GE QSFP to 4x 10GE SFP+ splitter cable

Today I was very frustrated when I connect a 40GE QSFP to 4x 10GE SFP+ splitter cable to a HPE FlexFabric 5700 48G 4XG 2QSFP+ switch (JG894A). I received the following message: [HPE]%Jan 8 19:02:19:652 2011 HPE OPTMOD/4/MODULE_IN: FortyGigE1/0/54: The transceiver is STACK_QSFP_PLUS_4SFP_PLUS. [HPE]%Jan 8 19:02:50:826 2011 HPE OPTMOD/3/TYPE_ERR: FortyGigE1/0/54: Transceiver type not supported! First reaction: … Read moreUsing 40GE QSFP to 4x 10GE SFP+ splitter cable