7 ms·
You changed your interface to not implement RFC 5735: 127.0.0.0/8 - This block is assigned for use as the Internet host loopback address. A datagram sen
by blueflow 2y ago
You changed your interface to not implement RFC 5735:
127.0.0.0/8 - This block is assigned for use as the Internet host
loopback address. A datagram sent by a higher-level protocol to an
address anywhere within this block loops back inside the host. This
is ordinarily implemented using only 127.0.0.1/32 for loopback.
-- https://datatracker.ietf.org/doc/html/rfc5735#section-3 https://datatracker.ietf.org/doc/html/rfc5735#section-3
An ICMP Ping is a datagram in the sense of the second sentence.
- Hikikomori 2y agoNo, I'm just on a mac. Also: This is ordinarily implemented using only 127.0.0.1/32 for loopback.
- cryptonector 2y agoOn Linux it has a larger netmask and you can have multiple loopback addresses.
- ArchOversight 2y agoOn MacOS it has a larger net mask, but the OS doesn't respond to any address within that range automatically. lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 options=1203<RXCSUM,TXCSUM,TXSTATUS,SW_TIMESTAMP> inet 127.0.0.1 netmask 0xff000000 inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1 nd6 options=201<PERFORMNUD,DAD>