[j-nsp] Junos and single IPv6 link-local address per IFL

[Eldon Koyle]

He showed fe80::206:aff:fe0e:fffb/64 in his second example with the same
result.

-- 
Eldon

On Tue, Jan 22, 2019, 07:11 Anderson, Charles R <cra at wpi.edu wrote:

> Link-Local addresses should be in fe80::/64, not fe80::/10.  Try
> configuring a second one that meets this criteria, such as:
>
> > +       address fe80::206:aff:fe0e:fffb/64;
>
> On Tue, Jan 22, 2019 at 03:42:43PM +0200, Martin T wrote:
> > Hi,
> >
> > looks like Junos allows to have only a single IPv6 link-local address.
> > For example, here I tested with Junos 18.2R1.9:
> >
> > root at vmx1# show | compare
> > [edit interfaces ge-0/0/9 unit 0 family inet6]
> >         address fe80::206:aff:fe0e:fffa/64 { ... }
> > +       address fe80:1::206:aff:fe0e:fffa/64;
> >
> > [edit]
> > root at vmx1# commit check
> > [edit interfaces ge-0/0/9 unit 0 family inet6]
> >   'address fe80:1::206:aff:fe0e:fffa/64'
> >      Link Local address exists
> > error: configuration check-out failed
> >
> > [edit]
> > root at vmx1#
> >
> > ..or:
> >
> > root at vmx1# show | compare
> > [edit interfaces ge-0/0/9 unit 0 family inet6]
> >         address fe80::206:aff:fe0e:fffa/64 { ... }
> > +       address fe80::206:aff:fe0e:fffb/64;
> >
> > [edit]
> > root at vmx1# commit check
> > [edit interfaces ge-0/0/9 unit 0 family inet6]
> >   'address fe80::206:aff:fe0e:fffb/64'
> >      Link Local address exists
> > error: configuration check-out failed
> >
> > [edit]
> > root at vmx1#
> >
> > Just out of curiosity, why there is this limitation? For example
> > FreeBSD 11, which Junos 18.2R1.9 is based on, does not have this
> > limitation:
> >
> > root at FreeBSD-11:~ # ifconfig em0 inet6
> > em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> > 1500
> >
>  options=209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
> >         inet6 fe80::fc69:d3ff:feec:7741%em0 prefixlen 64 scopeid 0x1
> >         inet6 fe80::fc69:d3ff:feec:7740%em0 prefixlen 64 scopeid 0x1
> >         nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
> > root at FreeBSD-11:~ #
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