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Cisco knowledgeable UFies, please troubleshoot me | by thread_killer | 2005-09-12 15:03:41 |
| If I understand your topology correctly |
by radiowave911 |
2005-09-12 15:59:35 |
The packets from the 'internal' addresses will not have their address changed by the edge routers (or any other switch/router for that matter). The 'source' address of the PC/Server/Whatever will not be changed through the switching and routing. If the PC has an IP of 111.111.111.111, and a connection is made to 66.96.26.212, that server will see the connection as coming from 111.111.111.111, unless a router or other device in between does NAT and changes the address.
What I am wondering about is the /30 addressing for the core/dist layers, and why you would use all point-to-point addressing, rather than set up a management network to run them on. If you are going router to router between two sites, that makes sense to me, but not at the switch level.
The basic layout of our network has our /16 running largely as a class C. We have one or two of the class C networks dedicated to point-to-point networks for site-to-site routing over T1, T3, ATM, and the like. Out two main campus locations have the core switches in half of a class C for management. The distribution switches have address in the subnet in which the switch takes part (for the 1900 switches) or the management network, if they are running multiple VLANs on them.
Yes, we are a Cisco shop.
Now that it has taken me a half hour to write this (I have my 3 year old while my wife and older daughter are at a Brownie event), you probably already have more than enough responses :)
Off to get the three year old in the tub (she was painting).....I'll be back on later. |
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