Cable Modem IPV6
SB 6121 Cable Modem is fully IPV6 compatible. Cox is telling me IPV6 is now enabled. For years I have had to use IPV6 tunnelbroker for IPV6 access. interface Tunnel1 description Hurricane Electric IPv6 Tunnel Broker no ip address ip mtu 1480 ip virtual-reassembly in shutdown ipv6 address FE80::1 link-local ipv6 address x:x:x:x::2/64 ipv6 enable no ipv6 redirects ipv6 inspect IPV6 out ipv6 traffic-filter IPV6 in tunnel source x.x.x.x tunnel mode ipv6ip tunnel destination 216.66.22.2 ! interface FastEthernet0/0 ip address dhcp ip access-group 101 in ip nat outside ip virtual-reassembly in duplex auto speed auto ipv6 address dhcp ipv6 address FE80::1 link-local ipv6 address autoconfig ipv6 enable ipv6 route ::/0 Tunnel 1 Tommynet(config)#do ping 2001:470:20::2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2001:470:20::2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 16/20/24 ms Tommynet(config)# I have made the changes to my router to use the IPV6 via the outgoing interface and dual stacking already enable for tunnel broker. Tommynet(config)#int tun 1 Tommynet(config-if)#shut Tommynet(config-if)#no ipv6 route ::/0 tunnel 1 Tommynet(config)#ipv6 route ::/0 fastethernet 0/0 Tommynet(config)#do sh ipv6 int f0/0 FastEthernet0/0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::1 No Virtual link-local address(es): Stateless address autoconfig enabled Global unicast address(es): 2600:8805:7F30:0:C523:5FF3:694:2FC6, subnet is 2600:8805:7F30:0:C523:5FF3:694:2FC6/128 Joined group address(es): FF02::1 FF02::2 FF02::1:FF00:1 FF02::1:FF94:2FC6 MTU is 1500 bytes ICMP error messages limited to one every 100 milliseconds ICMP redirects are enabled ICMP unreachables are sent Input features: Common pak subblock Output features: Firewall Inspection ND DAD is enabled, number of DAD attempts: 1 ND reachable time is 30000 milliseconds (using 30000) ND advertised reachable time is 0 (unspecified) ND advertised retransmit interval is 0 (unspecified) ND router advertisements are sent every 200 seconds ND router advertisements live for 1800 seconds ND advertised default router preference is Medium Hosts use stateless autoconfig for addresses. interface FastEthernet0/0 ip address dhcp ip access-group 101 in ip nat outside ip virtual-reassembly in duplex auto speed auto ipv6 address dhcp ipv6 address FE80::1 link-local ipv6 address autoconfig ipv6 enable Tommynet(config)#do sh ipv6 route IPv6 Routing Table - default - 5 entries Codes: C - Connected, L - Local, S - Static, U - Per-user Static route B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary D - EIGRP, EX - EIGRP external, ND - Neighbor Discovery, l - LISP O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2 ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 S ::/0 [1/0] via FastEthernet0/0, directly connected C 2001:470:E2C0:1::/64 [0/0] via Vlan2, directly connected L 2001:470:E2C0:1::1/128 [0/0] via Vlan2, receive LC 2600:8805:7F30:0:C523:5FF3:694:2FC6/128 [0/0] via FastEthernet0/0, receive L FF00::/8 [0/0] via Null0, receive Tommynet(config)#do ping ipv6 2001:470:20::2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2001:470:20::2, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) Tommynet(config)# By all accounts this should ping and it does not. Cox is telling me my modem is configured to do IPV6 but clearly not through Cox network. It appears the router has the IPV6 address assigned via autoconfig and that address is pingable. The rout is there to cox via f0/0 but it does not work. When I went back to the tunnel it pings fine. What the hey Cox. Is your IPV6 up or not.10KViews0likes5Comments