Newbie here...I have a Dlink router/switch/wireless device connected to my
Cable modem. I recently purchased a Cisco 871 that I'd like to practice on and was thinking of connecting it to my
DLink device to simulate a WAN connection and have 2 different networks.
How do I connect the devices though? Neither has a serial connection, only ethernet ports. Is this not doable?
You can connect as below.
cable modem -----DLINK internal sw port ----------F4 871 F0~F3 --- PC
F4 on 871 is WAN link.
Connect F4 on 871 to DLINK router's internal network sw port.
ip add dhcp
ip nat outside
int vla 1
ip add 10.x.x.x xxxx
ip nat inside
ip nat inside source list 1 int f4 over
access-list 1 permit any
Above config is very simple config.
871 got private DHCP address from DLINK as WAN IP then it will NAT again to 871's private address.