2 Questions

Greetings:

I have 2 quick questions.

1- Does the exam tell you when it is using ip subnet-zero for finding subnets or is it always assumed to be on?

2- What exactly does a switch do with an IP address? I know it is needed for Telnet, however, what else does a switch do with it?

Thank you,
es

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Comments

scheistermeister

examseeker wrote:

2- What exactly does a switch do with an IP address? I know it is needed for Telnet, however, what else does a switch do with it?

That is a huge question... It can do a lot with that IP... I would just leave it at that for now.

nice343

examseeker wrote:

Greetings:

I have 2 quick questions.

1- Does the exam tell you when it is using ip subnet-zero for finding subnets or is it always assumed to be on?

2- What exactly does a switch do with an IP address? I know it is needed for Telnet, however, what else does a switch do with it?

Thank you,
es

1. Cisco routers now come with ip subnet zero enabled by default so I assume that is what will be on the exam

2.A switch can even do a routers job depending on the switch platform.

But in terms of a layer 2 switch, an Ip address is used for management purposes and the ip default-gateway is used to send unknown packets to the router

dynamik

1. You shouldn't assume anything. You will be able to discern whether or not it is enabled based on the question or exhibit, but it probably won't explicitly tell you. Be sure to know when you can and cannot use subnet zero and what to look for in the config.

shednik

scheistermeister wrote:

examseeker wrote:

2- What exactly does a switch do with an IP address? I know it is needed for Telnet, however, what else does a switch do with it?

That is a huge question... It can do a lot with that IP... I would just leave it at that for now.

Well he's mainly referring at a CCNA level I believe which mainly only deals with L2 switching which you would really only assign a vlan an IP for management purposes. I'd have to look at the new objectives but I don't remember reading anything about L3 switching. So to the OP take a look at the objectives here: http://www.cisco.com/web/learning/le3/current_exams/640-802.html this is what you should base your studying off of. When you begin your CCNP studies is when you will learn more about multi layer switching.

shednik

to answer your second question here is the best explanation to your question about subnet zero on the exam...

https://cisco.hosted.jivesoftware.com/message/2462

networker050184

They usually use the IP address to fend off rouge switches as if it was a binary baseball bat

Like shednik said on the CCNA level its just used for management.

examseeker

Thank you for the replies.. I do plan taking the CCNA 1 exam option this month, so wish me luck!

As far as it goes, I cannot wait to get to CCNP level of studies to find out more!

Thanks,
es

mikej412

examseeker wrote:

wish me luck!

Good Luck!