Date: Fri, 28 Nov 2014 16:56:53 -0200 From: Marcelo Gondim <gondim@bsdinfo.com.br> To: freebsd-net@freebsd.org Subject: Re: IPv6 - traceroute6 not working Message-ID: <5478C575.1090008@bsdinfo.com.br> In-Reply-To: <5478B971.8090705@bsdinfo.com.br> References: <5478B971.8090705@bsdinfo.com.br>
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On 28/11/2014 16:05, Marcelo Gondim wrote: > Hi all, > > I have IPv6 deployed here in ISP and everything works normally. Today > I was testing a traceroute and it did not work. Below an example: > > (root@rt01)[~]# ping6 ipv6.google.com > PING6(56=40+8+8 bytes) 2001:xxxx:2001:1001::96 --> > 2800:3f0:4001:813::1004 > 16 bytes from 2800:3f0:4001:813::1004, icmp_seq=0 hlim=60 time=6.449 ms > 16 bytes from 2800:3f0:4001:813::1004, icmp_seq=1 hlim=60 time=6.266 ms > 16 bytes from 2800:3f0:4001:813::1004, icmp_seq=2 hlim=60 time=6.340 ms > 16 bytes from 2800:3f0:4001:813::1004, icmp_seq=3 hlim=60 time=6.410 ms > ^C > --- ipv6.l.google.com ping6 statistics --- > 4 packets transmitted, 4 packets received, 0.0% packet loss > round-trip min/avg/max/std-dev = 6.266/6.366/6.449/0.070 ms > > (root@rt01)[~]# traceroute6 ipv6.google.com > traceroute6 to ipv6.l.google.com (2800:3f0:4001:813::1004) from > 2001:xxxx:2001:1001::96, 64 hops max, 12 byte packets > > (root@rt01)[~]# uname -a > FreeBSD rt01.xxxxx.com.br 10.1-RELEASE FreeBSD 10.1-RELEASE #2 > r274375: Tue Nov 11 10:24:44 BRST 2014 > root@rt01.xxxxx.com.br:/usr/obj/usr/src/sys/GONDIM10 amd64 > > Must enable some sysctl or may be a bug? Sorry my fault!!! The problem was firewall rules. (root@rt01)[~]# ipfw add 1 allow ipv6-icmp from any to any 00001 allow ipv6-icmp from any to any (root@rt01)[~]# traceroute6 ipv6.google.com traceroute6 to ipv6.l.google.com (2800:3f0:4001:812::100e) from 2001:xxxx:2001:1001::96, 64 hops max, 12 byte packets 1 2001:xxxx:2001:1001::95 0.588 ms 0.494 ms 0.447 ms 2 2001:4860:1:1:0:ddd:0:3e 6.648 ms 6.570 ms 6.767 ms 3 2001:4860::1:0:4f24 17.159 ms 18.648 ms 6.919 ms 4 2001:4860:0:1::7c3 7.257 ms 6.688 ms 7.041 ms 5 2800:3f0:4001:812::15 6.664 ms 6.568 ms 6.730 ms Cheers,
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