02-28-2014 12:23 PM - edited 03-07-2019 06:27 PM
Hi guys, I am studying my ccna and have had a cisco 3725 router set up at home for a while but wanted wireless back in my house and so swapped for 877w.
There is no wireless covered in the ccna so I am kinda learning this as i go.
I am with BT (in the UK) and have a fibre modem and so have eventually figuried out how to connect using VDSL and am able to ping websites from the command line...
however I have 2 problems.
1.. I have set up DHCP (wrong obviously) and supposed to be running NAT inside but when i plug my laptop into one of the FE ports it does not pick up an IP address. (I have checked adapter settings.
The WAN connection is in VLAN1 and my Internal Access ports are in VLAN2. and I assigned my internal vlan with a dhcp pool but nothing is happening.
i know i must have messed up but dont know where.
and 2...
If i set my laptop IP manually, I can ping the VLAN Ip address but still cannot get off my network...what am i missing to be able to route between these 2 vlans?
thanks in advance..
here is my config, in full since I am not sure what the issue is. (p.s wireless isnt set up yet.)
hostname Router
!
boot-start-marker
dot11 syslog
ip cef
no ip dhcp use vrf connected
!
ip dhcp pool DHCPSERVER
import all
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1 255.255.255.0
dns-server 212.159.13.49 212.159.13.50
!
ip dhcp pool DSL_DHCP
import all
dns-server 212.159.13.49 212.159.13.50
default-router 192.168.1.1
!
!
ip name-server 212.159.13.49
ip name-server 212.159.13.50
!
!
!
!
!
archive
log config
hidekeys
!
interface ATM0
no ip address
shutdown
no atm ilmi-keepalive
dsl operating-mode auto
!
interface FastEthernet0
switchport access vlan 2
speed 100
pppoe enable group global
pppoe-client dial-pool-number 10
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface Dot11Radio0
no ip address
shutdown
speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0
station-role root
!
interface Vlan1
description INTERNAL NETWORK
ip address 192.168.1.254 255.255.255.0
ip nat inside
ip virtual-reassembly
!
interface Vlan2
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip virtual-reassembly
pppoe enable group global
pppoe-client dial-pool-number 10
!
interface Dialer1
ip address negotiated
ip mtu 1492
ip nat outside
ip virtual-reassembly
encapsulation ppp
dialer pool 10
ppp authentication chap callin
ppp chap hostname @@@@@@@@@@
ppp chap password 0 @@@@@@@@
!
router rip
version 2
network 192.168.1.0
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Dialer1
!
ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip nat inside source list 1 interface Dialer1 overload
!
ip access-list extended NAT
permit ip 192.168.1.0 0.0.0.255 any
!
control-plane
!
line con 0
no modem enable
line aux 0
line vty 0 4
login
!
scheduler max-task-time 5000
end
03-01-2014 02:32 AM
Hi,
1° your NAT statement references an inexistent ACL
--->
no ip nat inside source list 1 interface Dialer1 overload
ip nat inside source list NAT interface Dialer1 overload
2° get rid of the DSL_DHCP pool and edit your first pool
--->
no ip dhcp pool DSL_DHCP
ip dhcp pool DHCPSERVER
no default-router 192.168.1.1 255.255.255.0
default-router 192.168.1.1
3° so your modem is not in bridged mode and you are connected to it with one of your switched port(L2 port) in vlan 1
and your internal leg of the modem is 192.168.1.x ?
if so then Vlan 1 is your outside leg and not your inside leg but vlan 2 is your inside leg.
you will also need to put a static IP to vlan 2 for DHCP to work and change your pool to lease you addresses in another subnet like 192.168.2.0/24 for example.
Tell me if I understood correctly and I'll post the changes to be made.
Regards
Alain
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