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Can you have two interfaces on the same subnet?
So while you can’t have two interfaces with the same address (overlapping subnets), you can have one interface in two subnets using a Cisco router feature called secondary IP addressing which Odom says isn’t used very much. It’s easy to do and he includes a couple of labs in the network simulator:
Is it possible to have more than one subnet on a LAN?
However if they attempt to ping an IP on a different subnet, it won’t work unless the default gateway is setup on the router and some form of routing (static/dynamic) is setup on the router. Having more than one subnet on a LAN used to be more common than it is today. You can configure the router interface with a secondary* address.
Can a router be used as a gateway for both subnets?
You can configure the router interface with a secondary* address. This will allow the router to be the gateway for both subnets, and it will be able to route between them. Depending on the type of router and software version, some features may not be available on the secondary interface.
How to isolate Azure subnets in same virtual machine?
Two network security groups (nsg1 and nsg2). nsg1 is associated with subnet1, nsg2 is associated with subnet2 The default inbound rules, particularly for nsg2, allows access from vnet via default rule: I am trying to configure nsg2 to DENY traffic from vm1 to vm2 i.e. subnet1 to subnet2.
How to know if two IP addresses are in the same network?
The number-of-addresses in the subnet can be inferred from the subnet-mask, NetId can be inferred from the number-of-addresses, and the range of address values in the subnet starts at NetId + 1. NetId must always be an even multiple of number-of-addresses + 2 (and number-of-addresses + 2 will always be an even power of 2.)
Can you use two Ethernet adapters at the same time?
However, by definition, only one adapter may communicate on the network at a time in the Ethernet network topology. Therefore, both adapters cannot be transmitting at the same time and must wait if another device on the network is transmitting.
How does a router connect to a LAN 2?
The router looks up its routing table to find that it needs to use LAN 2 to reach any host in the 20.0.0.0/8 network. The router then uses ARP to find the MAC for Host B in LAN 2. Once it figures out the MAC for Host B it rewrites the MAC header in the original packet to Host B’s MAC and sends the packet out on LAN 2.