Please excuse another beginner trying to learn. I have a feeling I'm missing something simple here, but after a couple of days of searching, I haven't been able to figure it out.
I have the below configuration running on a 1921.
GE 0/0 is connected directly to a computer used that's acting as a DNS server. GE 0/1 is connected to a wireless switch.
GE 0/1/0-3 are connected to various wired devices.
ATM0/0/0 is connected to DSL.
I can access the Internet from devices attached to each part of the network, but devices on different networks cannot communicate (eg. ping 192.168.2.2 from 192.168.1.15 times out).
Current configuration : 3430 bytes ! version 15.7 ! ip dhcp pool WIRELESS_NETWORK network 192.168.1.0 255.255.255.0 default-router 192.168.1.1 dns-server 192.168.1.2 ! ip dhcp pool WIRED_NETWORK network 192.168.2.0 255.255.255.0 default-router 192.168.1.1 dns-server 192.168.1.2 ! ip dhcp pool vlan2 network 192.168.3.0 255.255.255.0 default-router 192.168.1.1 dns-server 192.168.1.2 ! no cdp run ! interface Embedded-Service-Engine0/0 no ip address shutdown no cdp enable ! interface GigabitEthernet0/0 ip address 192.168.1.1 255.255.255.0 ip nat inside ip virtual-reassembly in duplex auto speed auto no cdp enable no mop enabled ! interface GigabitEthernet0/1 ip address 192.168.2.1 255.255.255.0 ip nat inside ip virtual-reassembly in duplex auto speed auto no cdp enable no mop enabled ! interface ATM0/0/0 no ip address no ip redirects no ip unreachables no ip proxy-arp no atm ilmi-keepalive ! interface ATM0/0/0.1 point-to-point ip address dhcp ip nat outside ip virtual-reassembly in atm route-bridged ip pvc 8/35 encapsulation aal5snap ! interface GigabitEthernet0/1/0 switchport access vlan 2 switchport mode access no ip address no cdp enable no mop enabled ! interface GigabitEthernet0/1/1 switchport access vlan 2 switchport mode access no ip address no cdp enable ! interface GigabitEthernet0/1/2 switchport access vlan 2 switchport mode access no ip address no cdp enable ! interface GigabitEthernet0/1/3 switchport access vlan 2 switchport mode access no ip address no cdp enable ! interface Vlan1 no ip address shutdown ! interface Vlan2 ip address 192.168.3.1 255.255.255.0 ip nat inside ip virtual-reassembly in ! ip default-gateway 192.168.1.1 ip forward-protocol nd ! no ip http server no ip http secure-server ! ip dns server ip nat inside source list DYNAMIC_NAT_ACL interface ATM0/0/0.1 overload ! ip access-list extended DYNAMIC_NAT_ACL permit ip 192.168.1.0 0.0.0.255 any permit ip 192.168.2.0 0.0.0.255 any permit ip 192.168.3.0 0.0.0.255 any ip access-list extended VTY_ACCESS permit ip 192.168.1.0 0.0.0.255 any ! no service-routing capabilities-manager ! end
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