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[RRG] Re: [RAM] dns discover in map-and-encaps schemes
What happens when I type "ping <global-address>" on the source?
Not quite certain what you mean; do you mean ping the source IP
address from the destination IP address after the source has done
the DNS mapping for the destination. The intent is the egress tunnel
router nearest the destination will have cached the source IP to
locator mapping and so the ping will succeed.
No, it was a simple statement about what if a host uses addresses to
send packets and not DNS names.
What if DNS is down, do I lose global connectivity?
What happens if the DNS is down in today's Internet? You can
I can still "[ping,traceroute] <global-address>". I can still send
packets, I can still type in "http://192.168.0.1/"; in my browser.
ping any global IPv4 address and connect to any global IPv4
services by specifying an IP address instead of a FQDN, and
the very same will be true for this scheme. The only thing
How do you get locators when the DNS is down?
you *won't* be able to do is ping IPv6 addresses and connect
to IPv6 services that are deeply embedded in distant sites,
A problem.
What if network administrators are totally against making routers DNS
servers?
I want that the function be moved closer to the end devices, and
not in core routers - but, see more below:
That still won't make network administrators happier.
Dino
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