How To Reserve An IP Address In CISCO DHCP Server

بسم الله والحمد لله والصلاة والسلام علي رسول الله وآله وصحبه وإخوانه وسلم

How To Reserve An IP Address In CISCO DHCP Server

if you wanna  reserve an ip address for a certain client, for example a server in CISCO DHCP server follow these steps:

1- first you need to make a DHCP pool for this client alone.

2- find the mac address of the client "for example use (ipconfig / all) for windows and (ifconfig) for Linux" at the client, or you can use network scanners to find this information.

3- add 01 to the beginning of the mac address you got, for example:

if the mac address is 502c.e40e.fabf  add 01 to the beginning of the mac to be 0150.2ce4.0efa.bf.

01 indicates that it is an Ethernet client.

4- you can add optional features like the client name.

5- specify the lease period to be infinite.

Example:

ip dhcp pool amnetwrok
   host 192.168.10.1 255.255.0.0
   client-identifier  0150.2ce4.0efa.bf
   client-name AM-Client
   lease infinite

Best Regards

Ahmed Mustafa

وصلي الله وسلم وبارك علي النبي وآله وصحبه وإخوانه وسلم

Tunnel Interface & EIGRP Flapping Routes Case Study

 

بسم الله والحمد لله والصلاة والسلام علي رسول الله وآله وصحبه وإخوانه وسلم

 

Tunnel Interface & EIGRP  Flapping Routes Case Study

 

 in this case, at first i had a Tunnel interface with real ip to connect to a remote site using this tunnel. i used static routes.

after that, we have configured EIGRP to work over MPLS, i have given the static routes used with the tunnel a higher administrative distance just to allow EIGRP  to be the primary routing protocol, and to use the tunnel as backup solution.

for example:

ip route 192.168.10.0 255.255.0.0 10.10.10.1 200

where 10.10.10.1 is the tunnel interface identifier "also it may be the other end of the tunnel identifier".

the problem was that, some routes may flap, because i forgot to shutdown the tunnel interface.

shutting down the tunnel interface, solved the problem.

Hope that has been informative to you.

Best Regards

Ahmed Mustafa

وصلي الله وسلم وبارك علي النبي وآله  وصحبه وإخوانه وسلم

how to configure avaya ip phone 1603SW-I BLK1

بسم الله والحمد لله والصلاة والسلام علي رسول الله وآله وصحبه وإخوانه وسلم

 

how to configure avaya ip phone 1603SW-I BLK1

 

1-connect the power adapter

2-connect the network cable

3-wait till the phone powers up

4- press * to configure the ip phone manually otherwise it will prompt for a DHCP server.

5-when you see this message

----------------------

Enter PROCPSWD:

#=OK

----------------------

press # to continue

6- Phone=0.0.0.0

    New= "insert the ip you will give to this ip phone"

note that * equals . for example to type 10.10.1.12 it will be 10*10*1*12

to delete a number just press - in the volume button

then press # to go to the next step

7- CallSv=0.0.0.0

    New= "insert the ip of the avay call manager "or server"

then press # to go to the next step

8- Router=0.0.0.0

    New= "insert the ip address of the gateway on your lan "router ip address" "

then press # to go to the next step

9- Mask=0.0.0.0

    New= "insert the subnet mask"

then press # to go to the next step

10- FileSv=0.0.0.0

     New= "insert the file server ip address or leave it empty

then press # to go to the next step

11-802.1Q=auto

*=change #=ok  if you have vlans and use trunnking press * to turn 802.1q trunking on otherwise press # to keep it off

press # to proceed

12- Save new values?

*=no #=yes

press # to accept the configuration, you should see this message "new values have been accepted". then the phone will restart

after restart it will ask you for the Extension of this phone,

Enter Extension

Ext= 123 #ok

insert the extension and press # to confirm

then it will ask you for the password\

enter the password supplied by the voip admin then press # to confirm, and you are done.

best regards

Ahmed Mustafa