On 7/29/19 8:35 PM, Su Yanjun wrote:
> diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
> index 083cc1c..156c027 100644
> --- a/net/ipv6/ndisc.c
> +++ b/net/ipv6/ndisc.c
> @@ -603,11 +603,14 @@ void ndisc_send_ns(struct net_device *dev, const struct
> in6_addr *solicit,
> int inc_opt =
When the egress interface does not have a link local address, it can
not communicate with other hosts.
In RFC4861, 7.2.2 says
"If the source address of the packet prompting the solicitation is the
same as one of the addresses assigned to the outgoing interface, that
address SHOULD be placed in
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