Contents
- 1 What does a router do with a packet if the router does not know where to forward it?
- 2 What tells a router where to send a packet?
- 3 When a router needs to send a packet destined for other network it must know the?
- 4 How does a router know the next hop?
- 5 How does a router find the destination address?
- 6 What happens if router is not present in routing table?
What does a router do with a packet if the router does not know where to forward it?
If the router does not know where the destination network is, it will forward the packet to its defined gateway, which will repeat the same process. This router will determine the appropriate MAC address of the destination system and forward the packet accordingly.
What tells a router where to send a packet?
When the router receives a packet, it looks at its IP header. The most important field is the destination IP address, which tells the router where the packet wants to end up.
How do routers send data?
To put it simply, a router connects devices within a network by forwarding data packets between them. This data can be sent between devices, or from devices to the internet. The router does this by assigning a local IP address to each of the devices on the network.
What does a router do with a broadcast packet?
The primary role of router is to separate broadcast domains. Broadcast domains are restricted to layer 2 devices like switch. CASE- PC1 wants to send data to PC5. Every end of router is connected to different subnet.
When a router needs to send a packet destined for other network it must know the?
Discussion Forum
| Que. | When a router needs to send a packet destined for another network, it must know the |
|---|---|
| b. | Medium |
| c. | Path Flow |
| d. | IP Address |
| Answer:IP Address |
How does a router know the next hop?
To determine the next hop for a given packet, the router will compare it to each of the entries in the routing table (by anding it with the netmask and comparing it to the network address). It will forward the packet to the first next-hop that matches.
How do routers forward packets from one network to another?
Packet-forwarding routers forward packets but do not run routing protocols. This type of router receives packets from one of its interfaces that is connected to a single network. These packets are then forwarded through another interface on the router to another local network.
How does a router know if a packet has no route?
Routers will look at the destination address on a packet, and try to find a match in its routing table. If it cannot find a match it will drop the packet and send an ICMP message to the source to tell it that is has no route to the destination network.
How does a router find the destination address?
1 Answer 1. ARP is a LAN protocol that resolves a layer-3 to a layer-2 address. A router, like any host will use ARP for a host that is on a LAN to which it is directly connected. Routers will look at the destination address on a packet, and try to find a match in its routing table.
What happens if router is not present in routing table?
If route show its directly connected networks .Then further checks for ARP table and forward traffic to L2 switch , in L2 switch mac -address table is verified and forward packet towards specific destination. If router is not present in routing table of router .
How does a router forward packet to the destination?
If in routing table route to destination is found ,router will forward packet to next hop as per routing table . If route show its directly connected networks .Then further checks for ARP table and forward traffic to L2 switch , in L2 switch mac -address table is verified and forward packet towards specific destination.