Migrating from PPP to DHCPo82

Jack Bates jbates at brightok.net
Tue Nov 9 08:25:23 CST 2010


On 11/9/2010 3:24 AM, MKS wrote:
> Can you elaborate a bit more on this issue? What is the difference
> between a low pool for PPPoE and DHCP?
>

That may be implementation specific, or a reference to high IP rotation 
rates (which I like). PPPoE doesn't change it's IP as long as a 
connection is established. DHCP can change at the half life of the lease 
time. In my case, end systems which are currently busy will hold their 
lease in 10 minute intervals (I think it's 10) until that transmission 
is complete, and then it will renew to the new IP. There were a few 
legacy systems which didn't like changing IPs with 1 hour leases, but 
those are now obsolete and I haven't heard of a problem in years.

I expect new IPv6 support on CPEs to return to the old days of being 
horribly broken and have to work their way up to sanely handling 
renumbering (especially with DHCPv6-PD).


Jack




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