02-18-2013 11:56 AM - edited 03-04-2019 07:03 PM
Hi,
My Scenario will be like this (Please see the attached image)
Cloud (ISP)
|
Core Router
|
Firewall
My Core Router Configuration as follows:
interface FastEthernet0/0
ip address 78.*.*.* 255.255.255.*
duplex auto
speed auto
!
interface FastEthernet0/1
description "Connection to ISP"
ip address 89.*.*.* 255.255.255.*
duplex auto
speed auto
!
Now We recently purchased the following Public ip as follows :
78.*.*.* (for router)
78.*.*.* (for Host)
My Question is where and how can i configure the new router public ip inorder to access the public host ip?
02-18-2013 06:34 PM
HI Imran,
You could assign the new ip address as secondary ip address even though it is not a good practice to run the secondary ip address. Like
interface FastEthernet0/1
description "Connection to ISP"
ip address 89.*.*.* 255.255.255.*
ip address 78.*.*.* 255.255.255.* secondary
duplex auto
speed auto
Hope that helps.
Regards
Najaf
Please rate when applicable or helpful !!!
02-19-2013 11:06 AM
Dear Najaf,
Thaks for your support, i tried as you suggest; still its not working
#interface FastEthernet0/1
#ip address 89.*.*.* 255.255.255.*
#ip address 78.*.*.* 255.255.255.* secondary
#no shut
Even i tried the following but not working;
Primary_Router_HO(config)#inte fa0/1.1
Primary_Router_HO(config-subif)#ip address 78.*.*.* 255.255.255.*
% Configuring IP routing on a LAN subinterface is only allowed if that
subinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q,
or ISL vLAN.
Primary_Router_HO(config-subif)#
Looking forward to your reply.
02-20-2013 01:11 PM
i have added the secondary ip to the fastethernet interface of my router
now i can ping this address from my lan
I have already added the Acl and Natting (for my local ip(10.10.3.5) to public ip)
But nothing is working.
I configured exactly same as old config; but unable to ping new public router ip as well as host ip..
02-20-2013 01:17 PM
u have to assing ip with /30 mask on your public interface.
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02-20-2013 07:06 PM
Hi,
Could you please share your configurations?
Regards
Najaf
02-21-2013 05:33 AM
I ask my provider to check the settings;
Anyhow now this is working without any changes.
Thanks for your valuable time and considerations.
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