 JohnInSJPremium
join:2003-09-22
San Jose, CA
 ·PHONE POWER
 ·Comcast
| reply to johnnn
Re: [Speed] Congested Comcast Peering with Akamai, Google in Mid said by johnnn:I'm using anycast (75.75.75.75), and my router doesn't support IPv6.
Try using comcast's DNS. Just for grins.
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My place : »www.schettino.us |
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| That is Comcast's anycast DNS |
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JohnInSJPremium
join:2003-09-22
San Jose, CA Reviews:
·PHONE POWER
·Comcast
| said by nate1234:That is Comcast's anycast DNS
Perhaps using one from here »www.whatsmydns.net/dns/usa/comcast.html
Michigan
Primary DNS: 68.87.77.130
Secondary DNS: 68.87.72.130
Primary IPv6 DNS: 2001:558:1016:C:68:87:77:130
Secondary IPv6 DNS: 2001:558:100E:4:68:87:72:130
Would yield different CDN entry points?
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My place : »www.schettino.us |
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 NetFixerFrom my cold dead handsPremium
join:2004-06-24
The Boro
·Comcast Business..
·Vonage
 ·Cingular Wireless
·Comcast
| That is exactly what I do for the forwarding servers in my in-house DNS server. I chose the primary servers for Atlanta and Chicago because most of my routes go through either Atlanta or Chicago.
C:\>dig -x 68.87.68.162
; <<>> DiG 9.9.2 <<>> -x 68.87.68.162
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62426
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1280
;; QUESTION SECTION:
;162.68.87.68.in-addr.arpa. IN PTR
;; ANSWER SECTION:
162.68.87.68.in-addr.arpa. 1196 IN PTR nrcns.s3woodstock.ga.atlanta.comcast.net.
;; Query time: 31 msec
;; SERVER: 192.168.9.2#53(192.168.9.2)
;; WHEN: Sun Jan 27 13:11:54 2013
;; MSG SIZE rcvd: 108
C:\>dig -x 68.87.72.130
; <<>> DiG 9.9.2 <<>> -x 68.87.72.130
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26004
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1280
;; QUESTION SECTION:
;130.72.87.68.in-addr.arpa. IN PTR
;; ANSWER SECTION:
130.72.87.68.in-addr.arpa. 6112 IN PTR nrcns.area4.il.chicago.comcast.net.
130.72.87.68.in-addr.arpa. 6112 IN PTR chic-cns.area4.il.chicago.comcast.net.
;; Query time: 15 msec
;; SERVER: 192.168.9.2#53(192.168.9.2)
;; WHEN: Sun Jan 27 13:12:24 2013
;; MSG SIZE rcvd: 125
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