Hello,
RFC 4291 - "IP Version 6 Addressing Architecture" says in § 2.5.3. "The
Loopback Address" :
The loopback address must not be used as the source address in IPv6
packets that are sent outside of a single node.
However, the Linux kernel seems to allow it :
# tcpdump -nti ppp0 ip6 &
# telnet -b ::1 ftp.nerim.net
Trying 2001:7a8:1:5::18...
IP6 ::1.3709 > 2001:7a8:1:5::18.23: SWE 1160214622:1160214622(0) win
5600 <mss 1400,sackOK,timestamp 690752056 0,nop,wscale 0>
Observed with all my available kernel versions including 2.4.36.6,
2.6.18, 2.6.24, 2.6.26.5 and 2.6.28-rc5.
Is this a known bug ? Should I file a bug at bugzilla.kernel.org, or
report it in another list ?
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