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SubjectRe: 2.4 and full ipv6 - will it happen?
From
On Mon, Aug 26, 2002 at 05:51:23PM -0400, Michael H. Warfield wrote:
> My only other annoynance right now is the default ip6 route on my
> ipv6 router (RedHat 7.3). It's not working (or doesn't seem to be)! I
> have a 6bone allocation from Freenet6 (3ffe:b80:c84::/48) with about a
> half a dozen SLA subnets and several routers. If I assign a default route
> (::/0) on the main router back down my Freenet6 tunnel, weird things happen.

the linux kernel does ignore the ::/0 route if it is in forwarding not, I
guess this is since it is asumed, that the user knows what he is doing and
does not want to do that. You can use 2000::/2 instead.

> This has been noticed and mentioned by others on the 6bone and freenet6
> lists. Seems to be peculiar to Linux.

it is by intention, yes.

> The default routers on the leaf workstations (autoconfigured from
> router advertisements) seem to work fine though.

yes it deoeds on the ipforward setting.


BTW: i am working a bit on net-tools and ipv6, like:

calista:~# netstat -tl
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 *:1024 *:* LISTEN
tcp 0 0 *:5269 *:* LISTEN
...
tcp 0 0 calista.inka.de:domain *:* LISTEN
tcp6 0 0 *:auth *:* LISTEN
tcp6 0 0 *:ssh *:* LISTEN
tcp6 0 0 *:smtp *:* LISTEN


i am not yet sure about the wildcard address and the port separator, but I
like the tcp6 :)


ifconfig may get a more BSDish look, also:

# ./ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 metric 1
inet 10.0.0.3 netmask 255.255.255.0 broadcast 10.0.0.255
inet6 3ffe:400:4f0:ffff::3 prefixlen 112 scopeid 0x0<global>
inet6 fe80::2e0:7dff:fe92:1f0b prefixlen 10 scopeid 0x20<link>
ether 00:e0:7d:92:1f:0b txqueuelen 100 (Ethernet)
RX packets 2581434 bytes 1632512018 (1.5 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2031678 bytes 1202569629 (1.1 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 9 base 0x9000

Greetings
Bernd
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