Hi,
I have a problem in assigning a default gateway from network that
my computer's interfaces don't have IP from. And even when I add a route
to this network throw any of the interfaces it still returns ENETUNREACH
message. Then I thought that I can fix that with -ifp modifer of route
command but - no luck. After many tryes I found a way to set this route
but I don't think it's the right way it should be done.
Ok, now you have an interface with IP 2.2.2.2 but your gateway is
1.1.1.1 . First you should add a default route from your interface's
network or even his own IP 2.2.2.2 , then you should change this route
gateway to point to real gateway 1.1.1.1 and you should have a route to
this host or his network 1.1.1.1/??. Here is same but displayed with route
command:
1. route add default 2.2.2.2
2. route add 1.1.1.1 -iface xl0
arp -s 1.1.1.1 lladdr_of_1.1.1.1
or
route add -net 1.1.1.1/24 -iface xl0
3. route change default 1.1.1.1
4. optionaly : route change default -ifp xl0
That did it but why can't I do it with this command:
route add default 1.1.1.1 -ifp xl0
I look in sys/net/rtsock.c and sys/net/route.c and saw that
rtrequest() can't add a route to host throw interface but
route_output() function in rtsock.c could change it that way ?!?
I've changed these tow functions and now "route add default host -ifp
ifname" works but you still need a route to the gateway.
I think that if there is set ifp or ifa (end this is set if there
is a route at all :)) the kernel should try to arpresolve gateway's
lladdr throw that interface if it can't find a route to it.
Regards.
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