Help me with this subnetting question

anpu

Given an ip address of 100.100.0.0/19. Type in the address of the first subnet with the bitcount .

vman

dear anpu

u said that the network ID of the address will be 100.100.0.0/19
so as we can see that this is a class A adders so net step to do is the /19
this mean that your Subnet mask contain 19 1's like that
in binary
11111111.11111111.11100000.00000000 and then u have to convert it to decimal
it will be

255.255.224.0 so this will be your target Sn-id

then u said that u want the first subnet Ips it ok
well it takes some time from me to calculate it but here is the full range

in the next post

vman

---

SNID

---

first Ip

---

last IP
first subnet

---

100.100.32.0

---

100.100.32.1

---

100.100.63.254
2nd

---

100.100.64.0

---

100.100.64.1

---

100.100.95.254
3rd

---

100.100.96.0

---

100.100.96.1

---

100.100.127.254
4th

---

100.100.128.0----100.100.128.1

---

100.100.159.254
etc
SNID=network ID or Subnet ID

wish good luck for all of you

anpu

Thanks so much. Can you suggest frim where can I learn more about subnetting?

ghaouf

www.learntosubnet.com

vman

as our friend says www.learntosubnet.com is the best it have alot of details and explain it step by step