Weird behavior with multiple pool inside shared networks
niall.oreilly at ucd.ie
Tue Oct 27 10:14:44 UTC 2015
On Tue, 27 Oct 2015 09:17:59 +0000,
Simon Hobson wrote:
> A key thing to remember is that there is no such thing as "I receive
> packages from subnet 18.104.22.168" for broadcast packets.
It's also worth bearing in mind that the address shown in the "via"
phrase of the log message for DHCPDISCOVER is just arbitrarily
selected by the gateway/relay from the addresses configured on the
interface connected to the shared network. It may be the "primary"
address, or the one first in sort order, according to the
implementation. In particular, the example "via 22.214.171.124" doesn't
indicate anything which should prevent a DHCPOFFER from carrying an
address from the other subnet.
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