12-13-2013 04:12 AM - edited 03-04-2019 09:51 PM
i need to Need to configure 1941 as dhcp from static reserve IP address :117.239.69.81/29, gateway:117.239.69.9/29 and DNS: 218.248.255.211 ,218.248.255.139 and connect to switch
interface GigabitEthernet0/0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-GE 0/0$
ip address 10.10.10.1 255.255.255.0
duplex auto
speed auto
!
interface GigabitEthernet0/1
ip address 117.239.69.81/29
duplex auto
speed auto
ip dhcp excluded-address 10.10.10.1
!
ip dhcp pool ccp-pool
import all
network 10.10.10.0 255.255.255.0
default-router 10.10.10.1
dns-server 218.248.255.211
dns-server 218.248.255.139
ip route 0.0.0.0 0.0.0.0 117.239.69.9
Kindly give solution or modified one/new wether any nat needed
12-13-2013 06:23 AM
! For the interface to use dhcp instead of fixed adress
interface GigabitEthernet0/1
no ip address 117.239.69.8/129
ip address dhcp
! set default route to interface instead of address
no ip route 0.0.0.0 0.0.0.0 117.239.69.9
ip route 0.0.0.0 0.0.0.0 Gi0/1
! even in this configuration the router probably will not route the private range 10.x.x.x
! out of the interface with public address 117.239.69.81 without NAT.
! you neet to specify wich direction to nat (private adresses to the inteface with public address)
int Gig0/0
ip nat inside
int Gig0/1
ip nat outside
ip nat inside source interface Gi0/0 interface Gi0/1 overload
! or more flexible:
ip nat inside source route-map INTERNET interface Gi0/1 overload
route-map INTERNET permit 10
match ip address 101
access-list 101 permit ip 10.10.10 0.0.0.255 any
12-13-2013 07:01 AM
Thanks but customer is using static ip there is no dhcp server The isp directly terminated in a switch. so we need to connect user with router 1941 (may act as dhcp server) for user end to connect another switch from router 1941.pls give suggestion as if we use dhcp in gigaethernet 0/1.
otherwise where to use the isp static ip?
12-13-2013 07:20 AM
You got me confused now.
So you don't want the router configured as dhcp client, but as server?
but the router is allrady configured as dhcp server
ip dhcp pool ccp-pool
network 10.10.10.0 255.255.255.0
will issue dhcp addresses on the interface in the same subnet
interface GigabitEthernet0/0
ip address 10.10.10.1 255.255.255.0
if you want this on the other interface (gi0/1)
than you may add another dhcp scope
ip dhcp pool second-pool
network 10.10.20.0 255.255.255.0
(etc)
and change the address or add a secundary address to the gi0/1 interface
interface GigabitEthernet0/1
ip address 10.10.20.1 255.255.255.0 [secundary]
or configure a subinterface ( eg for vlan 20)
interface GigabitEthernet0/1.20
encapsulation dot1Q 20
ip address 10.10.20.1 255.255.255.0
and configure the connected switchport as vlan-trunk for both untagged and vlan-20tagged packets
and connect your clients to access-ports in vlan 20 on this switch
12-13-2013 07:37 AM
hi
thanks once again no need of secondary dhcp as they use static ip which means where to give isp address as they dont have modem they only have direct reserve ip 117.239.69.81/29, gateway:117.239.69.9/29. i connect in router whether it wont need to give isp ip address in the router.
12-13-2013 07:49 AM
You got me very confused now.
I read in your post a question about dhcp, "i need to configure 1941 as dhcp...."
ans in your other post "pls give suggestions as if we use dhcp in gigaethernet 0/1"
But both my answers (1941 as dhcp client or dhcp server) do not seem to answer your question?
Please clarfy what you want, maybe then i can give an answer thats is helpful to you.
12-13-2013 08:09 AM
hi
make as dhcp server and connect pc from router for internet. thanks its helpful and configured ok....
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