traceroute fails for IPv4 but works for IPv6

[timk...@gmail.com]

5/19/12 traceroute fails for IPv4 but works for IPv6.  Browser seems to work ok on all sites.  Linux Fedora 16  (Windows 7 traceroute (tracert) works for both IPv4 & IPv6)

[tim@localhost ~]$ traceroute -n -w 2 -q 2 -m 30 8.8.8.8

traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets

 1  192.168.1.254  2.077 ms  2.913 ms

 2  151.164.186.20  23.583 ms  24.594 ms

 3  64.161.163.214  18.174 ms  20.340 ms

 4  * *

 5  12.83.60.130  29.863 ms *

 6  * *

 7  * *

 8  * *

 9  * *

10  * *

11  * *

12  * *

13  * *

14  * *

15  * *

16  * *

17  * *

18  * *

19  * *

20  * *

21  * *

22  * *

23  * *

24  * *

25  * *

26  * *

27  * *

28  * *

29  * *

30  * *

[tim@localhost ~]$ dig @8.8.8.8 www.google.com.

; <<>> DiG 9.8.2-RedHat-9.8.2-1.fc16 <<>> @8.8.8.8 www.google.com.

; (1 server found)

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62174

;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:

;www.google.com. IN A

;; ANSWER SECTION:

www.google.com. 86399 IN CNAME www.l.google.com.

www.l.google.com. 299 IN A 74.125.224.177

www.l.google.com. 299 IN A 74.125.224.178

www.l.google.com. 299 IN A 74.125.224.176

www.l.google.com. 299 IN A 74.125.224.179

www.l.google.com. 299 IN A 74.125.224.180

;; Query time: 53 msec

;; SERVER: 8.8.8.8#53(8.8.8.8)

;; WHEN: Sat May 19 16:21:32 2012

;; MSG SIZE  rcvd: 132

[tim@localhost ~]$ traceroute -n -w 2 -q 2 -m 30 2001:4860:4860::8888

traceroute to 2001:4860:4860::8888 (2001:4860:4860::8888), 30 hops max, 80 byte packets

 1  2602:304:cf9b:e3e9::  1.205 ms  2.102 ms

 2  2602:300:c533:1510::8  14.037 ms  16.614 ms

 3  2001:1890:ff:ffff:12:122:127:48  21.229 ms  23.036 ms

 4  2001:1890:c00:4b00::115e:e307  25.648 ms  28.216 ms

 5  2001:4860::1:0:29b3  58.419 ms 2001:4860::1:0:991  33.200 ms

 6  2001:4860::8:0:2995  35.472 ms 2001:4860::8:0:2996  38.082 ms

 7  2001:4860::8:0:2f03  101.606 ms 2001:4860::8:0:2f04  104.132 ms

 8  2001:4860::2:0:a7  126.225 ms  159.351 ms

 9  2001:4860:0:1::109  111.341 ms  126.847 ms

10  2001:4860:4860::8888  106.655 ms  103.352 ms

[tim@localhost ~]$ dig @2001:4860:4860::8888 www.google.com. AAAA

; <<>> DiG 9.8.2-RedHat-9.8.2-1.fc16 <<>> @2001:4860:4860::8888 www.google.com. AAAA

; (1 server found)

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 17009

;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:

;www.google.com. IN AAAA

;; ANSWER SECTION:

www.google.com. 86399 IN CNAME www.l.google.com.

;; AUTHORITY SECTION:

l.google.com. 600 IN SOA ns2.google.com. dns-admin.google.com. 1486077 900 900 1800 60

;; Query time: 149 msec

;; SERVER: 2001:4860:4860::8888#53(2001:4860:4860::8888)

;; WHEN: Sat May 19 16:22:33 2012

;; MSG SIZE  rcvd: 102

[tim@localhost ~]$ 

[Yunhong Gu]

sometimes switches may block traceroute. Since you can still get DNS answer from 8.8.8.8, the network should be fine.

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[timk...@gmail.com]

Thanks for the reply. Guess everything is ok, great.