netdev - Ip Rule For GRE Tunnel‏

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Date:   Tue, 13 Oct 2020 17:29:21 +0300
From:   לירן אודיז <liranodiz@...il.com>
To:     netdev@...r.kernel.org
Subject: Ip Rule For GRE Tunnel‏

Hi, Is it possible to set IP rule for GRE tunnel? in the IP rule man
there is missing information about the "tun_id" selector parameter,
what is the meaning of this parameter?

How can i set IP rule for the following GRE tunnel?

[root@...alhost /]# ip tunnel show
gre0: gre/ip remote any local any ttl inherit nopmtudisc
tunl0: any/ip remote any local any ttl inherit nopmtudisc
sit0: ipv6/ip remote any local any ttl 64 nopmtudisc
greT1: gre/ip remote 70.70.70.2 local 70.70.70.1 ttl inherit key 1
ip_vti0: ip/ip remote any local any ttl inherit nopmtudisc key 0

BR, Liran Odiz