I know it's too late for this kind of ideas, but i will say it anyway:
1. We should look on a subnet4 option only as a container for devices
that have some options in common:
a) they send DHCP packets over the same relay
b) they belong to same class
c) something else
2. If 1 is true then we should have a slightly different setup of
subnet/pools:
a) subnets should contain common options (name server, domain name...)
b) subnet should contain a classifier setup (i.e. relay info) based
on which devices belong to that subnet
c) pools should have a possibility of adding additional options to
them (netmask and routers for start)
That way we would be able to have only one subnet definition per
classifier (if i am not mistaking) and it would look like this (rough
example, sorry):
subnet4: [
{
id: 1,
// common options for this subnet start
"option-data" : [
{
"name" : "ntp-servers",
"code" : 42,
"space" : "dhcp4",
"csv-format" : true,
"data" : "ntp.server.ip.address"
},
{
"name" : "domain-name",
"code" : 15,
"space" : "dhcp4",
"csv-format" : true,
"data" : "domain.name.tld"
},
{
"name" : "domain-name-servers",
"code" : 6,
"space" : "dhcp4",
"csv-format" : true,
"data" : "first.dns.ip.address, second.dns.ip.address"
},
],
// common options for this subnet end
// pools start
"pools": [
{
"pool": "first.pool.start.ip - first.pool.end.ip",
// pool specific options start
"option-data" : [
{ "name" : "routers" ... },
{ "name" : "netmask" ...}
]
// pool specific options end
},
{
"pool": "second.pool.start.ip - second.pool.end.ip",
// pool specific options start
"option-data" : [
{ "name" : "routers" ... },
{ "name" : "netmask" ...}
]
// pool specific options end
},
],
// pools end
// classifier start
"relay": {
"ip-address": "relay.ip.address"
}
// classifier end
}
]
this situation doesn't cover specific cases, for example cable network
where one relay covers two device classes and i haven't really thought
about it for now, so i will not make any proposals about that case.
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