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0
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1answer
39 views

802.1q Trunk Ports to Server - Drawbacks?

So I know that I can configure my switch to trunk a port and tag/untag packets from my Windows and UNIX servers using functionality provided by the NIC. My question is, what are all the downsides of ...
0
votes
0answers
44 views

Tagging VLANs on a Netgear GS748Tv1

I inherited an old Netgear GS748Tv1 and want to use it with a Cisco Aironet 1200 with multiple SSIDs. Currently my SSIDs are mapped to vlan 1 and vlan 3 (which is tagged on the aironet). I can't get ...
2
votes
1answer
361 views

SR-IOV on KVM hosted guest using tagged vlans

I have read a few posts here on NOT using tagged vlans in KVM because of the emulated e1000 drivers, but I have a situation where I need to use tagged vlans. Because of this we used SR-IOV enabled ...
0
votes
3answers
853 views

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 ...
2
votes
3answers
463 views

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 ...
1
vote
1answer
296 views

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, ...
-2
votes
2answers
234 views

Linux OS with GUI based multiple vlan support [closed]

Is there a distribution of Linux that includes support in the gui for managing 802.1q (trunks) We have techs in the field that may need to change from one vlan to another but don't know Linux CLI at ...
0
votes
0answers
1k views

Trunking between Cisco 1800 router and Cisco Catalyst 2960 switch

I would like to establish trunk between Cisco router 1812 and Catalyst 2960 switch. What I would like to have is that router gets ip address on his fe0 interface and on fe2 provides trunk with 3 VLANs ...
1
vote
2answers
2k views

VMWare vsphere 4.1 - how to allow 802.1q vlan tagging?

I read this KB article: ...
-2
votes
2answers
86 views

Are Cisco access ports basically the same thing as a port on an unmanaged switch? [closed]

The title should say it all..I'm trying to learn more about VLANs, tagging/trunking, etc.
19
votes
3answers
3k views

What happens when a consumer switch receives a VLAN-tagged Ethernet frame?

Suppose you connect a trunk port from a VLAN capable network switch to a (VLAN incapable) consumer-grade network switch via a direct cable. Now the former switch send the later switch a 802.1Q-tagged ...
7
votes
3answers
3k views

Cisco and Linux and Vlans

I appear to have some fundamental misunderstanding of how VLANs work on Linux, and I'm hoping the good people here can educate me. Cast: One Cisco 3560, one VLAN, and one Linux box [1]. Cisco ...
3
votes
1answer
151 views

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?
0
votes
1answer
294 views

WAN and LAN via the same cable

I've got 4 WAN Internet connections and want to use all of them using router DrayTek Vigor 3300V. They recommend to connect ADSL modems to WAN ports of router. I cannot connect 2 of modems directly ...
3
votes
3answers
1k views

Can a non-VLAN-aware switch pass 802.1q tagged packets?

Let's say I have a incoming connection which is fixed 1Gb/s with tagged packets. And lets say that I need to connect that connection to a device which is a 10/100 device, which deals with the tagged ...
4
votes
3answers
9k views

Set 802.1Q tagged port on VLAN1 on Dell PowerConnect switch

I'm having big troubles when adding this Dell switch to my network. Here we use several VLANs to segment traffic. All switches (3com and DLink mostly) have configured the same VLANs, most ports are ...