From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Samad Date: Mon, 20 Sep 2004 03:00:38 +0000 Subject: Re: [LARTC] IPv6 routing question - corrected Message-Id: <20040920030038.GF2148@samad.com.au> MIME-Version: 1 Content-Type: multipart/mixed; boundary="jKBxcB1XkHIR0Eqt" List-Id: References: <414E38FD.3080003@netcabo.pt> In-Reply-To: <414E38FD.3080003@netcabo.pt> To: lartc@vger.kernel.org --jKBxcB1XkHIR0Eqt Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Sorry having a bit of a problem reading your diagram but is the destination on the wire or is routed via box B have you tried a tcpdump on B to see what it sees ? A On Mon, Sep 20, 2004 at 03:40:39AM +0100, filipe abrantes wrote: > hi and thanks for replying, >=20 > #ip r g 3030::254 > 3030::254 via 3030::254 dev eth0 src 2020::2 metric 0 > cache mtu 1500 advmss 1440 >=20 >=20 >=20 > Alexander Samad wrote: > what do you get when you try >=20 >=20 > ip r g 3030::254 >=20 > A >=20 > On Mon, Sep 20, 2004 at 02:57:17AM +0100, filipe abrantes wrote: > * sorry for the other schema, it came out a mess. I hope > this one is > understandable. >=20 > hi: >=20 > I have this 2 boxes set up like this: >=20 >=20 > 2020::2/128 > 2020::254/128 3030::254/128 > 192.168.0.2/24 192.168.0.254/24 >=20 > 192.168.30.254/24 >=20 > +-------+ eth0 > eth3 > +-------+ > | |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D | > | eth1 > | A > | | B > | ---- > | > | | > | >=20 > +------- > + +------ > -+ >=20 >=20 >=20 > A >=20 > # ip r l > 192.168.30.254 dev eth0 scope link > 192.168.0.0/24 dev eth0 scope link > 169.254.0.0/16 dev lo scope link > 127.0.0.0/8 dev lo scope link >=20 > # ip -6 r l > 2020::254 dev eth0 metric 1024 mtu 1500 advmss 1440 > 3030::254 dev eth0 metric 1024 mtu 1500 advmss 1440 > (...plus link local and multicast routes) >=20 >=20 > B >=20 > # ip r l > 127.0.0.1 dev lo scope link > 192.168.0.0/24 dev eth3 proto kernel scope link src > 192.168.0.254 > 192.168.30.0/24 dev eth1 proto kernel scope link src > 192.168.30.254 >=20 > # ip -6 r l > 2020::2 dev eth3 metric 1024 mtu 1500 advmss 1440 > metric10 64 > (...plus link local and multicast routes) >=20 > # cat /proc/sys/net/ipv4/ip_forward > 1 > #cat /proc/sys/net/ipv6/conf/all/forwarding > 1 >=20 >=20 > The problem is that i can ping 192.168.30.254 from A, but i > can't ping > 3030::254 from A, anyone has a clue why this happens? Is > there any > feature i need to turn on or anything misconfigured? Why > does it work > for IPv4 but not for IPv6? >=20 >=20 > A -> B >=20 > # ping 192.168.30.254 > PING 192.168.30.254 (192.168.30.254) 56(84) bytes of data. > 64 bytes from 192.168.30.254: icmp_seq=3D0 ttl=3D64 time=3D0.175 > ms > 64 bytes from 192.168.30.254: icmp_seq=3D1 ttl=3D64 time=3D0.122 > ms >=20 > #ping6 3030::254 > PING 3030::254(3030::254) 56 data bytes > From ::1 icmp_seq=3D0 Destination unreachable: Address > unreachable > From ::1 icmp_seq=3D1 Destination unreachable: Address > unreachable >=20 >=20 > Regards >=20 > Filipe Abrantes > _______________________________________________ > LARTC mailing list / _=08L_=08A_=08R_=08T_=08C_=08@_=08m_=08a_= =08i_=08l_=08m_=08a_=08n_=08._=08d_=08s_=089_=08a_=08._=08n_=08l > _=08h_=08t_=08t_=08p_=08:_=08/_=08/_=08m_=08a_=08i_=08l_=08m_= =08a_=08n_=08._=08d_=08s_=089_=08a_=08._=08n_=08l_=08/_=08m_=08a_=08i_=08l_= =08m_=08a_=08n_=08/_=08l_=08i_=08s_=08t_=08i_=08n_=08f_=08o_=08/_=08l_=08a_= =08r_=08t_=08c HOWTO: _=08h_=08t_=08t_=08p_=08:_=08/ > _=08/_=08l_=08a_=08r_=08t_=08c_=08._=08o_=08r_=08g_=08/ >=20 > _______________________________________________ > LARTC mailing list / _=08L_=08A_=08R_=08T_=08C_=08@_=08m_=08a_= =08i_=08l_=08m_=08a_=08n_=08._=08d_=08s_=089_=08a_=08._=08n_=08l > _=08h_=08t_=08t_=08p_=08:_=08/_=08/_=08m_=08a_=08i_=08l_=08m_= =08a_=08n_=08._=08d_=08s_=089_=08a_=08._=08n_=08l_=08/_=08m_=08a_=08i_=08l_= =08m_=08a_=08n_=08/_=08l_=08i_=08s_=08t_=08i_=08n_=08f_=08o_=08/_=08l_=08a_= =08r_=08t_=08c HOWTO: _=08h_=08t_=08t_=08p_=08:_=08/ > _=08/_=08l_=08a_=08r_=08t_=08c_=08._=08o_=08r_=08g_=08/ >=20 >=20 --jKBxcB1XkHIR0Eqt Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBTkfWkZz88chpJ2MRAkgpAKCn8IxpUa7vm41+DlGyqwLETxNEtACg3cqh bjrIMoLpE+4+6GjN+IK+ZTs= =Aweq -----END PGP SIGNATURE----- --jKBxcB1XkHIR0Eqt-- _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/