On 08/18/2015 03:39 PM, Björn Lässig wrote:
> For not having any dependencies in my cluster network, i want to use
> only ipv6 link-local addresses on interface 'cephnet'.
> cluster_network = fe80::%cephnet/64
RFC4007 11.7
The IPv6 addressing architecture [1] also defines the syntax of IPv6
prefixes. If the address portion of a prefix is non-global and its
scope zone should be disambiguated, the address portion SHOULD be in
the format. For example, a link-local prefix fe80::/64 on the second
link can be represented as follows:
fe80::%2/64
In this combination, it is important to place the zone index portion
before the prefix length when we consider parsing the format by a
name-to-address library function [11]. That is, we can first
separate the address with the zone index from the prefix length, and
just pass the former to the library function.
so my original format would be the correct one.
just looked into the code ... and this is exactly what happens in:
src/common/ipaddr.cc: bool parse_network(const char *s, […]) {
it looks where a '/' is and try to cast everything after to a longint.
Everything before the '/' is thrown into inet_pton
ok = inet_pton(AF_INET6, addr, &((struct sockaddr_in6*)network)->sin6_addr);
and inet_pton6 from glibc does not look at '%'.
No chance, this code could work with an interfacename after or before
the '/'
I'm using addresses with global scope now.
Björn
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