on comcast network:
ryan@skynet:~$ dig @75.75.75.75 google.com
; <<>> DiG 9.8.1-P1 <<>> @75.75.75.75 google.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22577
;; flags: qr rd ra; QUERY: 1, ANSWER: 11, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 139 IN A 74.125.224.99
google.com. 139 IN A 74.125.224.104
google.com. 139 IN A 74.125.224.100
google.com. 139 IN A 74.125.224.110
google.com. 139 IN A 74.125.224.96
google.com. 139 IN A 74.125.224.98
google.com. 139 IN A 74.125.224.105
google.com. 139 IN A 74.125.224.103
google.com. 139 IN A 74.125.224.102
google.com. 139 IN A 74.125.224.97
google.com. 139 IN A 74.125.224.101
;; Query time: 25 msec
;; SERVER: 75.75.75.75#53(75.75.75.75)
;; WHEN: Tue Mar 26 09:42:51 2013
;; MSG SIZE rcvd: 204
ryan@skynet:~$ dig @75.75.76.76 google.com
; <<>> DiG 9.8.1-P1 <<>> @75.75.76.76 google.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53816
;; flags: qr rd ra; QUERY: 1, ANSWER: 11, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 118 IN A 74.125.224.102
google.com. 118 IN A 74.125.224.110
google.com. 118 IN A 74.125.224.99
google.com. 118 IN A 74.125.224.100
google.com. 118 IN A 74.125.224.104
google.com. 118 IN A 74.125.224.97
google.com. 118 IN A 74.125.224.96
google.com. 118 IN A 74.125.224.105
google.com. 118 IN A 74.125.224.101
google.com. 118 IN A 74.125.224.103
google.com. 118 IN A 74.125.224.98
;; Query time: 43 msec
;; SERVER: 75.75.76.76#53(75.75.76.76)
;; WHEN: Tue Mar 26 09:43:20 2013
;; MSG SIZE rcvd: 204
not on comcast network:
ryan@ryan-imac:~$ dig @75.75.75.75 google.com
; <<>> DiG 9.8.3-P1 <<>> @75.75.75.75 google.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 37483
;; flags: qr rd ra; QUERY: 0, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; Query time: 16 msec
;; SERVER: 75.75.75.75#53(75.75.75.75)
;; WHEN: Tue Mar 26 09:43:10 2013
;; MSG SIZE rcvd: 12
ryan@ryan-imac:~$ dig @75.75.76.76 google.com
; <<>> DiG 9.8.3-P1 <<>> @75.75.76.76 google.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 8157
;; flags: qr rd ra; QUERY: 0, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; Query time: 65 msec
;; SERVER: 75.75.76.76#53(75.75.76.76)
;; WHEN: Tue Mar 26 09:44:09 2013
;; MSG SIZE rcvd: 12
other than the refused messages while trying via non comcast network, it's working fine for me...