On 2022-02-21 22:38, Rich Brown wrote:
There is a new RFC on the OpenWrt forum proposing "Automatic LAN Subnet
Reassignment"
https://forum.openwrt.org/t/rfc-automatic-lan-subnet-reassignment-upon-conflict-with-wan/120938
The RFC responds to the advice given at last week's OpenWrt-Adm meeting
(https://etherpad.wikimedia.org/p/ZlZiTcud3wufcSX9-1jD)
The intent of the proposal is for the default configuration to assign a LAN
subnet that avoids a conflict with the WAN subnet, and provide a mDNS name such
at OpenWrt.lan for connections.
I have two requests:
1) Please make comments on the technical merits of the proposal on the OpenWrt
forum at the link above.
2) If the proposal seems to make sense, please consider the process by which we
would incorporate this into the main release (likely, not for 22.0x, but
perhaps the next release?)
I think this regards only IPv4. I propose that the RFC1918 nets on
either side be in the same block, to avoid NAT, and try to retain
routing: performance. A NAT choice might present security advantages,
however.
Ideally one would consider configured (static) routes such that any
chosen (sub)net does not collide with one further up/downstream.
No preference either way for .home.arpa. or .lan: both are sane, but one
more to type than the other, although both available is good.
4.3 and 4.4 have importance, however:
https://www.rfc-editor.org/rfc/rfc8375#section-4
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