Hi,

Currently, in ipoib_main,c, the IPv4 broadcast group from which all
other IPoIB multicast groups are derived is defined as:

static const u8 ipv4_bcast_addr[] = {
        0x00, 0xff, 0xff, 0xff,
        0xff, 0x12, 0x40, 0x1b, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff
};

The scope of this group is (0x2) link local.

In preparation for IB routers, other scopes should be supported.

Is an acceptable approach to supporting additional scopes to add a
module parameter for this ?

-- Hal


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