Hello!
> ipi->ipi_spec_dst.s_addr = next_hop_addr; /* Routing destination
IP_PKTINFO selects source address, rather than destination.
You need not this, actually. Simply send this raw packet to desired
nexthop. [ Or look at rsvpd port at ftp.inr.ac.ru, how to make this. ]
> p.s.: is reading the interface identifier indices (if_index) by ioctl or
> by a netlink socket compatible?
Yes.
> ioctl: lo (if_index = 1), dummy (index = 2), eth0 (index = 3) etc.
> netlink socket: lo (if_index = 1), eth0 (index = 2!!!!!) etc.
>
> shouldn't interface indices be unambiguous?
Evidently, you have run iotcl: and netllink: on different systems.
Alexey
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