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Questions tagged [802.1]

IEEE Standard for port-based Network Access Control

141 questions
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KVM 802.1q (tagged VLAN setup)

I've done a lot of reading about VLAN tagging in KVM bridged networks, but am getting very confused as to what needs to be tagged (the physical network devices, or the bridges attached to those devices) and whether or not the VM guest needs to tag…
kwiksand
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arp who-has requests view vlan isolated different addresses (single NIC)

I have debian hosts which are connected through trunk port on 5 different vlans. But this host respond to arp "who-has" requests of all of their differents ip. I wish understand why ... Here the network/interfaces file (eth0.1 handle…
jjumper
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Ethertype field for 802.1q tagged frames

If 802.1q is created Ethertype field is changed to 0x8100 which means what it means - it is a 802.1q frame. But this means Ethertype is no longer used for marking higher level protocol, for example, 0x0800 for IPv4. What are the consequences of…
Vieplis
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Registation or Guest VLAN for 802.1x via Microsoft NPS

I am currently working on a Microsoft NPS solution to provide 802.1x MAC authentication for wired and wireless clients along with providing a VLAN for the clients to be moved to. It currently works perfect with our Wireless APs and switches, however…
dave
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How do mixed wireless clients (b/g/n) effect total throughput of an access point?

Say you are planning a network based around access points that support the full range of 802.11 protocols on 2.4Ghz(b/g/n). How will a mixed set of clients effect the total throughput possible through the access point? For example, say we have the…
Chris Pitman
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Portable, battery-powered, wireless access point, ethernet adapter

I am in need of an adapter that will convert an ethernet port into a wireless access point. I have found a handful of devices, but I'm unable to find a device that is battery powered. Does a self-powered wireless access point even exist? The…
Jed
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Realistic benchmarks of 802.11n / WiFi N performance?

I need to be able to connect a computer to our network with realistic speeds to the rest of the network of 30+ Mbps (as measured by something like iperf). Running a wire is not an option here, and the computer is about 50 feet away from the rest of…
Nick
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Port Mirror and 802.1Q

Does a port mirror send ethernet frames out of the switch-port with the 802.1Q header bytes still on the frame?
Ablue
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802.1x or mac port security on SAN switches

I'm going through DISA security hardening on our network devices. Our iSCSI SAN network uses 2 Cisco 2960G layer 2 switches. The SAN consists of 2 HP P4000 devices. Servers are 3 Dell R710s in a Hyper-V cluster. DISA has a rule about enabling…
murisonc
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Why slow (500-4500ms) ping times to google.com over Wi-Fi?

I regularly get ping times (to google.com) on my netbook over wireless (802.11) of: 500-4500ms for about half the time 100-150ms for the rest of the time. It seems to switch back and forth on the order of minutes. Regression: It doesn't seem to…
BCS
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Freeradius VLAN assignment with EAP-TLS and WiFi 802.1x

I'm using FreeRadius with a Ubitquiti WiFi AP with 802.1x auth using EAP-TLS (mutual client/server cert based auth). This is working well for static VLANs (i.e. specified on the AP). I'd like to offload the VLAN assignment to Radius so that…
user397220
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If network card supports 802.11n, does it mean it supports 5ghz band?

I've gotten a new router that broadcasts 2.4ghz and 5ghz bands. But my desktop could only see the 2.4ghz connection. I read from a website that as long as my network adapter supports 802.11a or 802.11n network modes, this means that the computer…
xenon
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802.1x dynamic vlan assignment not assigning VLAN

I recently dived into 802.1x authentication with dynamic vlan assigment. My current set up contains of: - A client - A SG220 cisco switch (the supplicant) - A freeradius (authenticator) based on an LDAP AD - A fortigate for…
martijn
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Cisco Voice VLAN with 802.1X Authentication

I've got a Cisco Catalyst 2960 that I'm trying to configure for a remote office with 802.1X wired authentication. The setup I'm going for is Switch -> VoIP Phone via Internal Switch -> PC/Laptop (Domain Joined Win 7/8). Our authentication server is…
iamacarpet
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Radius Client IP Address when setting up Wifi with WPA2 Enterprise?

I have taken over a server setup (as part of my job) which is setup of the following: Server setup with Threat Management Gateway (serving as the firewall) - 192.168.1.1 Server with Domain Controller Role - 192.168.1.10 Server with Radius and NAP…
Jeff Kranenburg
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