Dear Maintainer,

I'm connected to my ISP via cable modem which uses an ethernet connection to my router running debian. On that router, I run a dhclient to retrieve my public ipv4 address.
Yesterday, my ISP decided to hand me the following parameters via DHCP:

inet 100.103.70.92/18 brd 255.255.255.255
(part of output from "ip addr")
default via 100.103.127.254 dev eth0
(part of output from "ip route")

which broke ipv4 for me. I manually removed the bogus broadcast address and added the corresponding one in my subnet:

which immediately made ipv4 work again.

IMHO, there should be an option in dhclient (or it should be the default?) to map broadcast addresses (and gateway addresses?) which are outside of the subnet into that subnet.

OTOH, I tried today to undo my changes (without rebooting my router) and ended up with working ipv4 with this 255.255.255.255 broadcast address :-/

Dear submitter,

as the package isc-dhcp has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/1143544

The version of this package that was in Debian prior to this removal
can still be found using https://snapshot.debian.org/.

Please note that the changes have been done on the master archive and
will not propagate to any mirrors until the next dinstall run at the
earliest.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

Debian distribution maintenance software
pp.
Thorsten Alteholz (the ftpmaster behind the curtain)