All Questions
94
questions
0
votes
1
answer
144
views
Switch ping to router with trunk port
If I have a switch port trunk directly connect to a router with the follow scenario below:
-------- g1/0/1 (Trunk) g1/0/1 |------|
|switch| Native VLAN 1 SVI=...
- 103
1
vote
2
answers
794
views
Is it okay to not assign an IP address to the physical interface of router when used for "Router on a Stick"?
When setting up "Router on a Stick" interVLAN routing, the steps I have seen only covered creating sub-interfaces for each VLAN and assigning an IP address to each of these sub-interfaces. ...
- 13
0
votes
2
answers
578
views
Sharing one VLAN with two routers each one will route different subnet
We are transitioning to new WAN connectivity. I have one VLAN (let's say ID 10). Currently there is one router R1 that has one private subnet and one public subnet on the VLAN 10 which goes through ...
- 3
0
votes
0
answers
64
views
Cisco 2960 and Cisco 871 - no connectivity on non-default vlans
Unable to get internet connectivity from non-default vlans.
Suspect router config is not adequate
Five vlans created on 2960 (10,20,30,40,50)and Gig port 0/1 set to trunk.
Port f0 on router which is ...
- 101
2
votes
5
answers
3k
views
Router interface on same subnet
Could someone please explain why a router can't have 2 interfaces on same subnet?
Do routers use network addresses to forward traffic?
- 31
1
vote
1
answer
1k
views
Problems when configuring VLAN on Arista vEOS Router
I'm setting up a network on GNS3 with the end goal of configuring VxLAN. I routed 3 Arista vEOS router together and each of them has a host attached. With basic L3 routing, everything works. I need ...
- 21
0
votes
0
answers
27
views
InterVLAN routing on Cisco router with multiple trunks [duplicate]
I recently came across a scenario where I wanted to (ab)use a Cisco router (ISR 4331) as a layer 3 switch.
The router is directly connected to two switches. The connection between each switch and the ...
- 101
0
votes
2
answers
208
views
Tagging a VLAN or not
I want to create a wi-fi network for guests using access points.
I asked to the IT provider a dedicated network with its VLAN and it is: 172.16.0.0/24 VLAN ID 344
The above network is configured on ...
- 3
1
vote
1
answer
98
views
Is it possible to configure DHCP on a router or UTM firewall for the multiple VLANs on L3 Switch?
I'm working on expanding our office network to accommodate more users/devices. Currently we have the DHCP configured on a UTM firewall(cyberoam ing50) device(cum router) providing IP addresses for ...
- 13
0
votes
2
answers
296
views
Loopback interface
I have a theoretical question about the loopback implementation on a router.
I understand that the idea of a loopback interface is that it is a virtual interface which never goes down due to a ...
0
votes
1
answer
775
views
Duplicated Vlan ID
I have one flat network with our data center and it is causing as a lot of issues, so i had to design a new network to separate the buildings from the data center, when I designed the new network i ...
- 99
2
votes
3
answers
335
views
What device manages VLANs?
I understand what a VLAN is and what purpose it serves. However, I'm having a difficult time understanding where VLANs orginate.
Specifically, I know CISCO firewalls, switches, and routers all deal ...
- 167
1
vote
2
answers
406
views
I cannot Encapsulate on Router
I have VLAN10 and VLAN20, I am trying to communicate between computers with the same VLAN on the following setup:
I want to apply encapsulation from Router but it doesn't seem to recognize ...
- 13
0
votes
3
answers
955
views
How to communicate Different VLANs in Different Switches
I have 3 switches, 2 switches connected to 1 main switch.
I have VLAN6, VLAN7, VLAN8 and VLAN9.
VLAN6 has VLAN6-1 end device.
VLAN7 has VLAN7-1 end device.
VLAN8 has VLAN8-1 and VLAN8-2 end devices.
...
- 103
0
votes
1
answer
1k
views
How to enable Inter-VLAN multicast traffic on a layer 3 Siemens RX1510 Network Switch using IGMP?
I have a single Layer 3 Siemens RX1510 network switch split into 4 separate VLANs on different subsets.
Name | Gateway | Subnet
VLAN1 | 198.97.100.123 | 255.255.255.0
VLAN2 |...
- 101