The value in the destination MAC when using an unnumbered interface?

For example there is a network between the two routers. They spelled out the static of ranting, but as the next hop outgoing interface written to each other, what value will be in the mac destination (if using ethernet).
June 14th 19 at 19:15
1 answer
June 14th 19 at 19:17
In theory it should be like this:
First, the sending router will try to find out what the MAC address of the host with the correct destination IP, that is, I'll try to send a standard ARP request. If nobody answers, then the status for that record will be Incomplete, accordingly, no MAC address will not.
To another host replied to an ARP request, it is necessary that he himself was such an address or proxy ARP is enabled.
If the two router are connected to each other, it will be the MAC address of the adjacent router the outgoing packet.

That someone practiced:
And then there's Pro and cons of such a venture would say:
Is possible more in detail? How two router are connected to each other, can learn mac each other, if they as get not recorded, the address of the next router, and outgoing interface, it is considered that you do not use either hdlc or ppp, ethernet only, thanks in advance - Olin15 commented on June 14th 19 at 19:20
if an interface is specified, then dest will be considered Directly connected, respectively, will be asked ARP to dst addresses. - delbert_Schuppe commented on June 14th 19 at 19:23
actually, the mechanism to ascertain the MAC address will be the same as in the case when the specified IP address as the nexthop. Will only be in the request not the address of the nexthop, and, as noted , the final address that is the destination.
Think how ARP works clear.

Initially, the routers do not know MAC addresses of each other, but as soon as the first traffic to a destination address, the sending router will send a broadcast ARP request.
That is, the sending router will send ARP request with an IP address destination from the specified interface, even if it's not the network that is actually configured on the interface. Need some device answered that all packets on such and such destination address should be sent to its own MAC address, again, even if it's not his real IP address.
For this you need proxy arp in this case - say that your MAC address is hidden and still a strange IP address that you got the route. - Elton.Heaney commented on June 14th 19 at 19:26
All, thanks a lot! - Olin15 commented on June 14th 19 at 19:29

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