On Tuesday, June 29, 2004, at 01:49 PM, Jens Alfke wrote:
mDNS uses link-local multicast and (to avoid spoofing) discards any
incoming packets with a TTL < 255. This means you won't be able to use
mDNS through a router. It's possible to set up multiple subnets on the
same switch and mDNS would work with those; but you probably don't want
to do that for an entire building with 20 subnets.
So it's impossible to use the current implementation of Rendezvous
across a router, even when VLANs are implemented? When I say VLAN, I
mean a collection of nodes in the same broadcast domain even if they're
on different network segments separated by a router. I spent some time
investigating exactly what link-local multicast is, but I didn't see
how it ties in with VLANs.
---Matt
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