Link to home
Start Free TrialLog in
Avatar of cisco20
cisco20Flag for United States of America

asked on

Network design / IP Addresing for local network

Hello Experts,

I'm looking at this trying to find ideas for simple ip scheme to be able to forward the public ip and access my end device over the net.

( 95.x.x.x /29 ) ----- ( T-1 ) ------pt to pt -------- (T-1)  -------- ( End Device)
   adsl modem           router                               router              router
      public ip
 
Avatar of MikeKane
MikeKane
Flag of United States of America image

For a private scheme you would want to use 10.0.0.0/8  172.16.0.0/12 or 192.168.0.0/16  

I usually tell people to stay away from the low numbers that most people use by default on consumer routers. (i,e, 192.168.1.0)


Is this for a home network with few hosts:
I would recommend 192.168.50.0/24, 192.168.51.0/24 for a private scheme.  


the exact subnet you pick is really based on the number of hosts you need on 1 LAN.   Try to stay away from very large subnets to avoid alot of broadcast traffic if you will have many hosts....  
Avatar of cisco20

ASKER

Mike, Thank you for quick response ! ! I agree with you on the most used ip's and the internal route forwarded will be an private.

My goal is to not complicate the routing portion of this config, so what would the t1  interaces and gateways be addressed to acheive this ?

adsl public ip : 95.x.x.x /29

router 1 ip :
router 1 gw :

router 2 ip :
router 2 gw:

end device ip :
end device gw:  


Thanks again.

So you have 3 segments here
segment 1   Adsl to router 1
segment 2   router 1 to router 2
segment 3   router 2 to end-user devices


I would do something like this:

Segment 1 subnet 192.168.50.0/30  with
adsl internal ip: 192.168.50.1
router1 ip: 192.168.50.2  


Segment 2 subnet 192.168.50.4/30
router 1 ip: 192.168.50.5
router 2 ip: 192.168.50.6

Segment 3 subnet 192.168.51.0/24
router 2 ip: 192.168.51.1
end user devices get dhcp 192.168.51.10-254  using gw 192.168.51.1  


You will need to add routes to the adsl and router 1 so they know where to send packets bound for 192.168.51.0  




Avatar of cisco20

ASKER

Very helpful Mike !

Does Telco normally provide the addressing for the point to piont circuit ? Haven't  dealt too much with these.

Thanks.
ASKER CERTIFIED SOLUTION
Avatar of MikeKane
MikeKane
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial