[CentOS] default gateway outside of the LAN

Mon Aug 20 09:14:21 UTC 2012
James Hogarth <james.hogarth at gmail.com>

> It's impossible to create a route via a host that can't be resolved by
> ARP (for IPv4).

Very true in general - the assumption in IRC was that text is not
always the best medium for transmitting ideas - especially when
someone is specifically anonymising stuff or does not have english as
a first language...

The only thing we could think of was that sort of scenario that could
possibly be valid... but without the original poster coming back and
describing more who's to say?

You don't need to resolve like that in the event of a true point to
point link where you can direct traffic down it (think serial WAN) and
the network layer type of traffic (IP or otherwise... much less
specific subnets) doesn't actually matter... but that didn't seem to
be what the OP was talking about unless in his attempt to generalise
and disguise his network layout he hid that inadvertently.

For an IP packet to be routed though it does indeed require resolving
a gateway on the local link for that to be routed through...