Hi Omer,

So now it works? :)

On Sunday 09 November 2008 01:04:10 Omer Zak wrote:
> Hello Noam,
> I may not have clarified myself.
> Basically, when I set wireshark to listen to sit1, it captures my
> ping6's Echo Request packets - but no replies.
>
> I also found that there are no ppp0 or eth1 traffic corresponding to the
> ping6-created sit1 traffic (my PC has two Ethernet cards, and eth1 is
> the one which is connected to the ADSL modem; I use pptp and it creates
> the network device ppp0; in other words, any IPv6 traffic is supposed to
> pass through sit1->ppp0->eth1 and back).
>
> I did see ppp0 traffic when tspc creates a tunnel, and it indicates
> success in connecting to anon.freenet6.net (the IPv6 tunnel broker which
> I use, as it supports anonymous logins).
>
> After reading the "2008-08-25 - Configuring IPv6 using AARNet's free
> broker" article at http://www.nick-andrew.net/ I found that my iptables
> firewall blocked protocol 41 packets in both input and output.
>
> On Sat, 2008-11-08 at 22:11 +0200, Noam Rathaus wrote:
> > > When I try to ping6 ipv6.google.com, I get no response.  According to
> > > wireshark, ICMPv6 echo requests are sent, but there are no echo
> > > replies. I tried all 4 values of -I parameter of ping6:
> > > sit0,sit1 - no response.
> > > sit,tun - unknown iface.
> >
> > You shouldn't see any ICMPv6 traffic! TSPC tunnels everything via
> > IPv4/IPv4UDP, so no ICMPv6 should be visible.
>
> See my comment above.
>
> > > I tried to ping6 both ipv6.google.com and 2001:4860:0:1001::68 (with -I
> > > both sit0 and sit1) - no response.
> > >
> > > > So I see two options:
> > > > 1) Your firewall is blocking
>
> This turned out to have been the case.
> The following iptables commands fixed the problem
> (where:   IPTABLES="/sbin/iptables"
>           INET_IFACE="ppp+"):
>
> $IPTABLES -A INPUT -p 41 -i $INET_IFACE -j ACCEPT
> $IPTABLES -A OUTPUT -p 41 -o $INET_IFACE -j ACCEPT
>
>                                             --- Omer


-- 
Noam Rathaus
CTO
[EMAIL PROTECTED]
http://www.beyondsecurity.com

"Know that you are safe."

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