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Posts published by “Alex”

Are ARP requests cascading

When a device sends an ARP Request, it broadcasts to all Nodes, which then check against their own ARP Tables and respond with an ARP reply or drop the Packet, but what happens if the device is not directly connected?
So assume some networ...

Should my device combine local DNS and static DNS?

Our linux based device was originally configured to use locally DHCP assigned DNS servers, however after encountering a customer with this misconfigured, we changed the configuration to use static DNS servers (such as 8.8.8.8 and 1.1.1.1)....

Can Loopback IP be Public

I have a Usecase where an Access Device need to reach a Core Device over the Internet. Access Device is configured with the Public IP of the Core device as of now so that it can reach the Core over the Internet.

However, we want to add an...

Trunk seems to be allowing all vlans

Got a catalyst 2690 on a small office net consisiting of 2 vlans, 10 and 20, 10 for the lan and corporate wifi and 20 fot guests wifi.
All lan ports are config on access mode vlan 10
The access point ports are trunk mode allowing pass 10 a...