Computer Networks I IP addressing
Computer Networks I IP addressing Computer Networks I IP addressing
Subnetting Variable Length Subnet Mask (VLSM) Computer Networks I 18 ● ● ● ● If the mask has a fixed size, all the subnets are the same size. This is a big issue because in many situations we need very small blocks. The serial links require only 2 IP address!! VLSM allows to apply subnetting in a nested way VLSM requires specific support from dynamic routing protocols. RIPv1 y GRP does not support VSLM, while RIPv2, OSPF and EIGRP do.
Variable Length Subnet Mask (VLSM) Sample 1 Divide the C-class network 200.10.10.0 in 3 subnets with 120 and 2x60 hosts. ● Subnet 0: 200.10.10.0/24: ● Net address: 200.10.10.0 /25 200.10.10.0/24: ● Holds 62 hosts ● Holds 126 hosts ● Subnet 1: ● Net address: 200.10.10.128 /26 ● Holds 62 hosts ● Subnet 2: ● Net address: 200.10.10.192 /26 ● 200.10.10.0/25 ● 200.10.10.128/25 ● 200.10.10.128/26 ● 200.10.10.192/26 Computer Networks I 19
- Page 1 and 2: Version Mar 14, 2011 Computer Netwo
- Page 3 and 4: Computer Networks I 3 Introduction
- Page 5 and 6: Computer Networks I 5 Introduction
- Page 7 and 8: Computer Networks I 7 Classful Addr
- Page 9 and 10: Private addresses RFC 1918 Some blo
- Page 11 and 12: Computer Networks I 11 Classful add
- Page 13 and 14: Computer Networks I 13 Classful add
- Page 15 and 16: Computer Networks I 15 Subnetting
- Page 17: Subnetting Subnet mask Computer Net
- Page 21 and 22: Computer Networks I 21 Supernetting
- Page 23 and 24: Computer Networks I 23 Classless ad
- Page 25: Computer Networks I 25 References
Subnetting<br />
Variable Length Subnet Mask (VLSM)<br />
<strong>Computer</strong> <strong>Networks</strong> I 18<br />
●<br />
●<br />
●<br />
●<br />
If the mask has a fixed size, all the subnets are the same size.<br />
This is a big issue because in many situations we need very<br />
small blocks. The serial links require only 2 <strong>IP</strong> address!!<br />
VLSM allows to apply subnetting in a nested way<br />
VLSM requires specific support from dynamic routing<br />
protocols. R<strong>IP</strong>v1 y GRP does not support VSLM, while R<strong>IP</strong>v2,<br />
OSPF and EIGRP do.
Change language