configuring swtich/Router

Cisco Access products 1602 10baset/10bas...
August 24, 2009 at 17:00:01
Specs: Windows Vista
1)I need more knowledge on how to configure cisco switch , Actually i was designing a network using packet tracer 5.0 and i tried to configure dhcp and dns on the server but i realize after everything some host receive ip while some didnt and i seems not to know the problem.
2)I finshed up my course for ccna but am yet to sit for the exam , So at moment am having some problem on how to configure NAT and WAN on cisco router, Pls i need help and whoever have idea pls kindly mail me a copy of reply to this id: bfun4real@gmail.com

cheers


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#1
August 25, 2009 at 08:29:34
never post your email address in a public forum unless you want it harvested for the world wide spam list.

Hit the edit button on your post to remove the email addy.

Lots of great info at the Cisco site.


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#2
August 25, 2009 at 08:55:19
Thank you me wanderer

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#3
August 25, 2009 at 11:35:13
What type of switch are working on? is it a layer 3 or layer 2 switch? model and code level? , you can setup Vlans and lots of SVI if you have a layer 3 switch..

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#4
August 25, 2009 at 11:52:49
Um believe me man am not expert on this am just one of this begininer but using packet tracer 5.0 and for the switch is layer 2 catalyst. And its 2950T and 2960.
I was initially thinking its when they all received ip from dhcp server that is when i can create vlan , Is that right or wrong and again is it advisable sir to configure DHCP server on router? And if yes how can we manage the host and all activities .

Thank you and will be glad to read from you soon.


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#5
August 25, 2009 at 12:34:36
you need to put a ip helper address on the switch and point it the dhcp server..

http://www.cisco.com/en/US/docs/ios...


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#6
August 25, 2009 at 12:35:55
it does not matter where you put it, on the router or server..

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#7
August 25, 2009 at 12:46:22
just use the default vlan, which is vlan 1., then on the SVI on vlan 1 , configure a ip helper address, if your using a remote DHCP server, like a windows or linux one, no ip address helper is needed if you configure a dhcp service on the router,

from

example

interface vlan 1
ip address 10.1.1.1 255.255.255.0
ip address helper 10.1.1.30

NOTE: make sure you can ping the DHCP from the cisco switch, or this will not work.

#ping 10.1.1.30 [enter]

now 10.1.1.30 is your dhcp server, this is required for dhcp services to work, now you have to learn howto configure the dhcp server, which is another topic.


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#8
August 25, 2009 at 12:59:11
Hm this is getting more and more interesting , Pls pardon me as have said am new to cisco and i need more knowledge if i may ask , Let take an example. I want to configure my dhcp service on router and for the little i know .

configure dhcp service on cisco router
--------------------------------------
conf t
service dhcp
ip dhcp pool 192.168.1.0/24
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 192.168.1.5
exit
ip dhcp excluded-address 192.168.1.1 192.168.1.199

Now dhcp service has been configure and for the ip helper , Am i going to configure that again on same router or on switch and pls kindly put me through.


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#9
August 25, 2009 at 13:00:24
Sir , The truth is i have couple of questions, So am just taking them step by step so it wont get clumsy :) .

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#10
August 25, 2009 at 13:01:36
that would work on the router, go for it, as long as you can ping 192.168.1.1 from the computer, your golden..

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#11
August 25, 2009 at 13:04:34
you don't need a helper address on the SVI now, your good, you only need a helper if your using a DHCP server off the router.

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#12
August 25, 2009 at 13:04:55
:) um if i may ask you sir, Can you tell me more about ip helper and how it works and again the differentiation between ip helper and dhcp.
Thank you Sir

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#13
August 25, 2009 at 13:07:11
you can google it, and you would find answer on how it works

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#14
August 25, 2009 at 13:08:15
Alright, Thanks a million. :) You the man

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#15
September 21, 2009 at 00:58:35
Sir ,
Pls can you help me out here, Am having problem in configuring frame relay on cisco router 2800 series .

dubai#config t
Enter configuration commands, one per line. End with CNTL/Z.
dubai(config)#encapsulation frame relay
^
% Invalid input detected at '^' marker.

dubai(config)#


pls can you put me through.
Thank you


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