RE: Website contact for www.cisco.com
I also ran into this problem yesterday, I contacted Cisco and they said that they were not block any of my addresses or ranges which I found to be strange since from what I could tell out of an entire /22 only one IP address was affected. As of around 0500 PDT this morning I was able to access Cisco's website again though. Chris Burton Network Engineer Walt Disney Internet Group - Network Services The information contained in this e-mail message is confidential, intended only for the use of the individual or entity named above. If the reader of this e-mail is not the intended recipient, or the employee or agent responsible to deliver it to the intended recipient, you are hereby notified that any review, dissemination, distribution or copying of this communication is strictly prohibited. If you have received this e-mail in error, please contact Walt Disney Internet Group at 206-664-4000. -----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Crist Clark Sent: Thursday, September 23, 2004 9:47 AM To: Temkin, David Cc: nanog Subject: Re: Website contact for www.cisco.com Temkin, David wrote:
Can someone responsible for either security or operations of www.cisco.com please contact me? We are seeing an issue where you may be blocking one of our source IP addresses from accessing the website.
Hmmm... Weird. We're having a similar issue. If you are at liberty to, could you please publicly or privately let me know what's going on here and whether it is a bug or feature? -- Crist J. Clark crist.clark@globalstar.com Globalstar Communications (408) 933-4387
Burton, Chris wrote:
I also ran into this problem yesterday, I contacted Cisco and they said that they were not block any of my addresses or ranges which I found to be strange since from what I could tell out of an entire /22 only one IP address was affected. As of around 0500 PDT this morning I was able to access Cisco's website again though.
"Content switching", when partially broken, can do fancy effects. Pete
Or CEF/DCEF if a linecard 'loses' a forwarding entry. On 9/26/04 1:03 PM, "Petri Helenius" <pete@he.iki.fi> wrote:
Burton, Chris wrote:
I also ran into this problem yesterday, I contacted Cisco and they said that they were not block any of my addresses or ranges which I found to be strange since from what I could tell out of an entire /22 only one IP address was affected. As of around 0500 PDT this morning I was able to access Cisco's website again though.
"Content switching", when partially broken, can do fancy effects.
Pete
-- Joe McGuckin ViaNet Communications 994 San Antonio Road Palo Alto, CA 94303 Phone: 650-213-1302 Cell: 650-207-0372 Fax: 650-969-2124
joe mcguckin wrote:
Or CEF/DCEF if a linecard 'loses' a forwarding entry.
Would that affect just one /32 out of a /22 if the subnet is not directly connected? (it probably would if you run some kind of ACL's that require flow state to be retained, but other than that, it should not) Obviously load balancers count as content switching devices which can also cause random brokenness. Pete
On 9/26/04 1:03 PM, "Petri Helenius" <pete@he.iki.fi> wrote:
Burton, Chris wrote:
I also ran into this problem yesterday, I contacted Cisco and they said that they were not block any of my addresses or ranges which I found to be strange since from what I could tell out of an entire /22 only one IP address was affected. As of around 0500 PDT this morning I was able to access Cisco's website again though.
"Content switching", when partially broken, can do fancy effects.
Pete
participants (3)
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Burton, Chris -
joe mcguckin -
Petri Helenius