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Questions tagged [route-table]

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what information needs a router to make a decision?

How does a router that receives a packet know what to do if it doesn’t know the subnet mask of the IP that sent the packet? The reason for asking this is that I didn't see any field in the IP header ...
netuser2024's user avatar
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1 answer
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Can two separate computers connect over 127.X.X.X IP range? [duplicate]

Is it possible to set two computers (each have one lan interface) to communicate over 127.X.X.X IP range (e.g. one PC 127.15.0.1 and the other 127.15.0.2) +-----------+127.15.0.1+-----------+ | MyPC ...
DEKKER's user avatar
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1 vote
1 answer
562 views

Why hosts have routing tables?

I don't understand why hosts in a network have a routing table. Aren't all packets sent by default to the switch, and the latter determines which port to forward the packet to based on the mac address?...
Mehdi Charife's user avatar
1 vote
2 answers
182 views

What's the different between a "mask" in route table and interface?

if we took Windows as an example, we can use the command "netstat -rn" to show route table as follows: IPv4 Route Table ===================================================================...
柯鴻儀's user avatar
  • 113
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1 answer
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Find best route in route table using sorting [closed]

I am trying to implement a forwarding algorithm by myself with ARP, ICMP and the forwarding algorithms. Given the routing table: typedef struct route_table_entry { uint32_t prefix; uint32_t ...
C. Cristi's user avatar
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2 votes
1 answer
82 views

Will the router crash when it is sent routes that it can't design to hold?

I am working with a Juniper router which has the capacity to hold 60M routes in the RIB and 4M routes in the FIB. Should the router crash when more than 4M routes are being sent to FIB, considering no ...
Rakesh Nittur's user avatar