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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
On Mon, 7 Oct 2002, Ralph Doncaster wrote: > When you setup a secondary ip on an interface > int fa0/0 > ip address a.b.c.d e.f.g.h secondary > > How does it determine where to send the packets? ARP. > Which is the same as adding the route described above. >From what I've read so far, it looks like you're asking for is more like automatic discovery of new subnets local to a given segment, followed by preferential route selection similar to HSRP. Except above, you're claiming that adding a secondary interface is the same as adding a route. It's not, as adding the secondary interface provides a logical link between a layer 3 address and a layer 2 address, so that ARP is not needed to find the next-(layer 3)-hop, only to find the next layer 2 hop. Again, let's move routing 101 to different venue. Pete -- Peter J. Templin, Jr., CCNP, CCDP Networking Consultant On-Line Internet Services - URDirect.net A division of Global On-Line Computers 5606 Randolph Blvd [email protected] San Antonio, TX 78233 (210)692-9911
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