Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations Mike Lewis on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Gateway outside of subnet (How does it work?) 1

Status
Not open for further replies.

Piloria

IS-IT--Management
Mar 12, 2002
435
GB
We have a section of our network that uses Clacc C subnets but they all use the same Class B gateway.
How does this work?
Subnets
10.1.1.0/24
10.1.2.0/24
10.1.3.0/24

Gateway
10.1.0.1/16
 
Yes it will work, the same way summarization works. When a router summarizes subnets, it lowers the mask to include many subnets represented in the same mask. 10.1.x.x/30 all the way down to 10.1.x.x/17 would work for this gateway. Administrators do this all the time with static routes to lower the size of the routing tables in the routers.

Burt
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top