A better term would be a default route as this is layer 3 mechanism. That statement basically says, if I have not more specific matching route in my table, send this traffic to next hop 192.168.200.2.
a little clarifciation as there is a command ip default-gateway which will let a layer 2 only device know where to send anytnig that is not on a local subnet.
thanks for your reply, yes HDLC is on by default but without the ip route 0.0.0.0 0.0.0 192.168.200.2 command you cannot ping accross the network.
HDLC High-Level-Data-Link-control, allows and provides a way for data to pass accross the serial linkHDLC defines the framing, HDLC frame has Flag byte, address byte control bit data field,type field and FCS field, HDLC performes error detection,
but without the default route there will only be the two connected networks in the routing table, by adding the default route 0.0.0.0 0.0.0.0 you create a static route to the next hop router so the packet can go through..
The default route can be used to put all traffic not destined for your local lan out to the internet. But if it's not working it means your routing tables are incorrect somewhere. Usually the ip route 0.0.0.0 0.0.0.0 xxx.xxx.xxx.xxx command is used at the boarder router separating your LAN from internet.
It can be used internally as well but remember that for a device to have full connectivity it must have a destination path and a return path. So interconnecting two devices like this - only using default route will work since they will both send every packet they don't know where it exists - to the other router.
Meaning, if you ping the remote network it will be sent to the other router because of the default route....next router knows where the network is....return path goes the same way back because of the default route.
...i know this is rather old but try to accomplish the same thing with three routers interconnected like a triangle and see if you can get it to work .