ā09-12-2011 05:15 AM - edited ā03-07-2019 02:10 AM
Good morning,
I am trying to set a Cisco 887VA router up for a ADSL Internet connection by Telecom Italia. I have been given the following IP parameters:
This setting are a little bit confusing because the LAN IP addresses cannot be the 85.36.247.40 because that one will correspond to the network, not to a specific host. I have tried to set up every specific IP into the 85.36.247.40 subnet but I always get Status DOWN and Protocol DOWN with the show ip interface brief command. The internet configuration that I have written for the ATM interface is the following:
interface ATM0
no ip address
no ip route-cache
no atm auto-configuration
no atm ilmi-keepalive
hold-queue 224 in
!
interface ATM0.1 point-to-point
ip address 85.36.247.42 255.255.255.248
ip access-group 100 in
ip nat outside
ip inspect firewall out
ip virtual-reassembly in
no ip route-cache
pvc 8/35
encapsulation aal5snap
!
!
Could you please take a look at it and try to solve my doubt about IP addressing? I did configure some other Telecom Italia routers but not CISCO 887 and there is always some miss-understanding with the IP addressing, but finally I could configure them.
Thanks in advance,
Rafael Azpiroz Valverde.
ā09-12-2011 05:29 AM
Rafael,
It looks like you have used the wrong IP address on the ATM interface
From your text :-
Change the config to this :-
!
interface ATM0.1 point-to-point
ip address 85.38.23.218 255.255.255.252
ip access-group 100 in
ip nat outside
ip inspect firewall out
ip virtual-reassembly in
no ip route-cache
pvc 8/35
encapsulation aal5snap
!
On the LAN interface use :-
int fast 0 (or what ever your port is)
ip address: 85.36.247.41 255.255.255.248
!
HTH
Alex
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