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SubjectRe: Tunneling Semantics - Owner?
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Chip Salzenberg wrote:
: Would someone please point me to the person(s) who are responsible for
: defining and/or changing the tunneling semantics? Is it just the set
: of maintainers of the relevant source files, or is there a Greater
: Master of IP (albeit still below Linus)?

I think tunneling devices were last touched by ANK.
But I have found a problem with the tunnel semantics I have proposed
in my previous mail

[ once again, I have proposed the tunnel setup to be changed from
ifconfig tunl0 ipaddr up netmask 255.255.255.255
route add otherend dev tunl0
route add -net othernet gw otherend
route del otherend
to
ifconfig tunl0 ipaddr up pointopoint otherend [ netmask 255.255.255.255 ]
route add -net othernet gw otherend
which looks more sane.
]

The problem is that when you do "ifconfig tunl0 ipaddr p-t-p otherend",
the recent Linux kernels also installs the route to "otherend" via tunl0,
which is certainly not the right thing - you want the other end of the
tunnel to be reachable via normal interfaces/routes (to which you can send
the encapsulated packets).

The other potential problem can be the non-P-T-P tunnels
(can GRE be a virtual WAN instead of the virtual point-to-point link?
IPIP certainly cannot, but is the same true for GRE over IP?).

-Yenya

--
\ Jan "Yenya" Kasprzak <kas at fi.muni.cz> http://www.fi.muni.cz/~kas/
\\ PGP: finger kas at aisa.fi.muni.cz 0D99A7FB206605D7 8B35FCDE05B18A5E //
\\\ Czech Linux Homepage: http://www.linux.cz/ ///
/// I think I'd rather be forced to learn perl than 68020 MMU. -Alan Cox \\\

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