06-29-2012 09:32 AM - edited 03-04-2019 04:50 PM
I am compliting this packet tracert activity
http://dc314.4shared.com/doc/jfFG54Ta/preview.html
I have started subnetting. the activity ask to create 7 subnets, The problem is that it wants 60 hosts in one subnet, 30 in another and so for. When I calculate I only get an even number per subnet for instances 16 host per subnet can anybody explain how can I distribute the hosts through the subnets?
Tahnk you.
06-29-2012 09:47 AM
Hello,
when you Subnet a prefix, you always get a certain amount of hosts per subnet, depending on the bits left as 0 in the subnet mask, although u could sometimes sacrifice the total number of Subnets u get with subnetting by supper netting some blocks or ranges, but again it depends on the situation.
perhaps if you write the task (ip/mask) u have to do here, we can help u better.
Hope it Helps,
Soroush.
06-29-2012 10:37 AM
Thank you soroushm
The task is as below there are three tasks to do. the devices used are
R1-ISP | Fa0/0 | N/A | ||
S0/0/0 | ||||
R2-Central | Fa0/0 | N/A | ||
S0/0/0 | ||||
PC 1A | NIC | |||
PC 1B | NIC | |||
Eagle Server | NIC |
R1-ISP, R2-central PC1a PC1b, S1-Central and the Eagle server. I subnet it to 8 subnet but I got 16 host per subnet. I would like to know the process on how we can devide it according to the tasks requirements.
Thank you the Tasks are below.
------------------------------------------------------------------------------------------------
You have been given an IP address block of 192.168.23.0 /24. You must provide for existing networks as well as future growth.
Subnet assignments are (assuming
ip subnet-zero
is enabled):
Interface IP addresses:
Additional configurations:
Add cables where missing.
You will need to configure the server, both routers, and the two PCs. You will not need to configure the switch nor do you need the IOS CLI to configure the routers. Part of the router configuration has already been done for you; all you must do is configure the static routes and the interfaces via the GUI; use 64000 as the clock rate on the serial link. The static route on R1-ISP should point to the existing student LAN subnet via R2-Central's serial interface IP address; the static route on R2-Central should be a default static route which points via R1-ISP's serial interface IP address. These procedures were explained in the Chapter 5 Skills Integration Challenge.
Verify your work using feedback from the
Check Results
button and the
Assessment Items
tab. Use ping, trace, web traffic, and the
Inspect
tool to examine the network. Trace packet flow in the simulation mode, with HTTP, DNS, TCP, UDP, and ICMP viewable in the Event List Filters. Use the simulation to test your understanding of how the network is operating.
06-29-2012 11:12 AM
hey Jon,
can you use variable subnet masking? if yes, use that.
1. you need a range which could accomodate 60 hosts so a mask of /26 provides you 62 hosts : 192.168.23.0 - 63 (subnet-zero enabled)
* for the rest you could use a /27 (capable of 30 hosts per subnet), its IP addresses should start after the above subnet though: 192.168.23.64 / 27.
for your point to point links you can use /30 to preserve IP addresses of a range.
HTH,
Soroush.
07-01-2012 01:53 PM
Soroush Thank you for your input...
What do you think about this correct me if I am wrong.
I came up with this subnets don't know if I am right
192.168.3.0 /26 LAN
192.168.3.64 /27 LAN
192.168.3.96 /28 ISP LAN
192.168.3.112 /29 ISP LAN
192.168.3.120 /30 WAN
192.168.3.124 /30 WAN
192.168.3.128 /30 WAN
NEED some input please...
PS: What do they mean when they when they say
For the server, configure the second highest usable IP address on the existing ISP LAN subnet.?
07-01-2012 02:05 PM
any time Jonathan,
yes that would work. as long as you stay clear of other ranges and dont overlap them, which u dont in this exmple, it must work.
just note that, if you didn't have ip subnet-zero enabled, you should have ignored 0-63 for the first range, always have that in mind
HTH
plz Rate if it helped,
Soroush.
07-01-2012 02:08 PM
I am not sure what is Ip Subnet-Zero ? pluse where can I activate it in the Tracer Pack program?
PS: What do they mean when they when they say
For the server, configure the second highest usable IP address on the existing ISP LAN subnet.?
07-01-2012 02:30 PM
in subnetting process, all zero bits in a net ID was considered invalid, called Zero Subnet. example:
192.168.3.0 / 26 : first range is 192.168.3.0 - 63 < 00-000000 till 00-111111 > u can see in binary format the 2 bits that we took from host id and gave to net ID are all zero, this subnet was considered invalid before (representing classfull Net ID) but when activating ip subnet-zero command on the router, u can use this range.
in ur assignment it says assume that it is enabled.
second highest IP, with this config of urs i think it'd be 192.168.3.109.
ISP LAN range: 192.168.3.96/28 >> 192.168.3.96 (range net ID), 192.168.3.97 (first valid ip) - 192.168.3.110 (highest valid ip) - 192.168.3.111 (range broadcast ip)
HTH
Soroush.
07-01-2012 03:51 PM
Friend Soroush could it be 118 too?
Because
between 96-112 ISP LAN and in between 112-120 it ISP LAN so the assigment never indicated which one of the two ranges correct me if I am missunderstanding please...
07-02-2012 03:16 AM
My understanding is, it must be from the Existing ISP LAN, not the future, because now it exist
were the replies helpful at all? u never rated them !
HTH,
Soroush.
07-02-2012 07:45 AM
I tried to voted before with not sucess but all your post are extremely helpful like I did voted for your on all of the post already ....
I have a questions will I start the first subnet will start from the server all the way down to the host or from the host to all the way to the server?
192.168.3.0 /26
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