Automatic LAN Subnet Reassignment
newtwen at gmail.com
Wed Feb 23 10:24:42 PST 2022
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,
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:
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