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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: iBGP next hop and multi-access media
> > > Manually configuring a static route in router A would achieve the result: > > > ip route 172.16.16.0 255.255.255.0 fa0/0 > > > > Why are we doing basic IP routing 101 on NANOG? > > OK, since it's so basic why don't you explain how to have router A > dynamically learn from router B that there is a new subnet on the local > ethernet? It cannot. IP works on layer 3. Ethernet is layer 2. Your local grouping happens on layer 2. Layer 3 does not know about it unless you TELL it about it. > So then what do you call a connected route (for an ethernet interface on a > router)? If you use ethernet, at the edges of your network you HAVE to > route IP blocks to the ethernet. A connected route is installed only when you *CONFIGURE* it, something that you are refusing to do. Configure the connected route by assigning a secondary to the interface and your router will *know* that it can reach that subnet directly. If you do not want to do that, configure a dynamic routing protocol or insert a static route pointing to a router which knows how to reach that network directly. Alex
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