sit tunnels limit?

[Rafal Maszkowski]

On Sun, May 02, 1999 at 07:14:35AM +0200, Rafal Maszkowski wrote:
> I have 24 IPv6-in-IPv4 tunnels set up. When I am trying to add another one I
> see:
> root w 6bone-gw:/usr/src,255# ip tun add repcio mode sit local 193.219.28.246 remote 157.158.1.102
> root w 6bone-gw:/usr/src,0# ip link set repcio up
> ioctl: No such device
> I tried to change HASH_SIZE in net/ipv6/sit.c but it didn't help.

Oops, I have forgotten to change the address when adding the new tunnel, so I
was attempting to create two tunnels to the same machine what for some reason
may be forbidden. Screaming 'stupid me' I tried again, with the right address:
[root w 6bone-gw src]# t="ip tun add"
[root w 6bone-gw src]# l="ip link"
[root w 6bone-gw src]# i=ifconfig
[root w 6bone-gw src]#  $t repciopan mode sit local 193.219.28.246 remote 156.17.120.125 ttl 64; $i repciopan up add 3ffe:902:1c::1/126
ioctl: No buffer space available
[root w 6bone-gw src]#

so againt an error but the interface seem to exist.

R.