Skip to main content
Network Engineering

Questions tagged [vlan]

Ask Question

For questions about Virtual LANs (VLANs) which are used to divide what otherwise would be a single OSI layer-2 broadcast domain into multiple, logical OSI layer-2 broadcast domains.

1,283 questions
Newest Active Bountied Unanswered
1 vote
1 answer
21 views

Is it possible to create vlan on bridge interface in opnsense firewall, I have tried but while creating vlan, on interface call drop down there is not showing bridge interface to select.
Zac67's user avatar
  • 92.2k
1 vote
1 answer
353 views

Starting from the following network topology: Internet --- ISP Cable Router --- Firewall --- Router --- rest of the network / multiple VLANs (port forwarding) | ...
Community's user avatar
  • 1
0 votes
1 answer
18 views

The following is the simplified topology of my organization's computer network. In my organization, there is a virtual classroom server with an internal IP address (for example, 192.168.1.5). There ...
Zac67's user avatar
  • 92.2k
4 votes
1 answer
968 views

Main Question: I'm wondering why the IEEE standard 802.1ad, which specifies the TPID of a S-VLAN as 0x88a8, for double tagged vlans exists, when it's also possible to just use two 802.1Q tags with the ...
Zac67's user avatar
  • 92.2k
1 vote
1 answer
791 views

I want to stress all ports on a SN3700 switch with iPerf. I want to force the traffic to go through each port, so port 1 to port 2, port 2 to port 3, port 3 to port 4, etc. The switch is running ...
Community's user avatar
  • 1
0 votes
2 answers
681 views

I have 1 L3 switch with Static ip - 192.168.0.252 Two L2 switches Switch A - 192.168.0.250 Switch B - 192.168.0.251 I have created VLANs in L3 switches with 192.168.1.1 and 192.168.2.2 ips abd set it ...
Community's user avatar
  • 1
3 votes
2 answers
2k views

My question is regarding Cisco SmartNet. Do I really need this support from Cisco? I'm a network technician, but I'm in charge of purchasing the network equipment for an upcoming project. I have spec ...
Tammy Alen's user avatar
  • 1
1 vote
2 answers
701 views

Currently I run the below scheme. The problem is that when ESXi is down it takes down all the network with it, so I have to boot up another router to log in to it. WAN > OPNsense (in ESXi)> ...
Community's user avatar
  • 1
0 votes
1 answer
169 views

I am not even sure how to search this. I need gi2/12 to only be able to talk to 1 specific vm as it needs direct internet access. how does one protect vlanX from receiving any traffic on a vlan that ...
Community's user avatar
  • 1
1 vote
2 answers
1k views

Looking for some help setting up a Dell PowerConnect 2724. 1st time setting one of these up. The best graphic I could find to explain my setup: My router DHCP is enabled so it will provide IP ...
Community's user avatar
  • 1
0 votes
1 answer
1k views

I am trying to setup a disruption between 2 networks one that is coming from the LAN port and one with a different SUBNET from the other (OPT) port. My LAN is not getting blocked from the OPT subnet ...
Community's user avatar
  • 1
1 vote
2 answers
289 views

I'm currently working on configuring inter-VLAN routing on a Cisco SF302-08 switch. I've already enabled Layer 3 routing, created the VLANs, assigned them to switchports, and configured the switch ...
Community's user avatar
  • 1
2 votes
1 answer
5k views

I have Cisco N9K-C9396PX L3 switch which has VLAN interface configured for my LAN gateway and i want to monitor how much traffic vlanXXX handling, I have configured SNMP monitoring to pull interface ...
Community's user avatar
  • 1
1 vote
2 answers
121 views

I need some advice about L2 traffic fetching. Here's the situation : I got 2 datacenters where both core switch (Cisco Nexus9000 C93240) are linked each other through a 1GB/s vPC where our VLANs are ...
motorbass's user avatar
  • 111
1 vote
2 answers
2k views

How can I achieve reachability from vlan terminated on the L3 switch to routed port on the router, FW? F.E int vlan 10,50 are the SVI's on L3 switch vlan 10 - 10.0.10.254 /24 vlan 50 - 10.0.50.254 /24 ...
Community's user avatar
  • 1

15 30 50 per page
1
2 3 4 5
…
86