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totojepast
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 Posted: Tue Jul 22, 2003 11:59 pm Post subject: Addressing the recent Cisco IOS bug |
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Should the ISP prefer upgrading the IOS or filtering the trafiic using the
ACL's? According to The Register, British Telecom's "attempts to guard
against a serious security problem overnight inadvertently disrupted the
connections of a substantial minority of UK Net users this morning." ("BT
overdoses on Cisco security fix",
http://www.theregister.co.uk/content/55/31828.html).
One of the major ISP's in another European country experienced a similar
incident. Did the IOS upgrade in your network run smoothly? Had the routers
and the switches enough memory to upgrade smothly?
And have you experienced any attempts to exploit the Cisco IOS bug?
Best regrads,
TJP |
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Walter Roberson
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| Posted: Wed Jul 23, 2003 2:41 am Post subject: Re: Addressing the recent Cisco IOS bug |
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In article <1445a2d7.0307221059.430512b8@posting.google.com>,
totojepast <totojepast@atlas.cz> wrote:
:Did the IOS upgrade in your network run smoothly? Had the routers
:and the switches enough memory to upgrade smothly?
Some sites are making the classic mistake of "If you are going to
upgrade anyways, might as well upgrade to the newest release".
Not the best of ideas if you are starting several releases back :(
--
Admit it -- you peeked ahead to find out how this message ends! |
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Evan Wagner
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| Posted: Fri Jul 25, 2003 1:22 am Post subject: Re: Addressing the recent Cisco IOS bug |
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In comp.dcom.sys.cisco totojepast <totojepast@atlas.cz> wrote:
| Quote: | Should the ISP prefer upgrading the IOS or filtering the trafiic using the
ACL's? According to The Register, British Telecom's "attempts to guard
against a serious security problem overnight inadvertently disrupted the
connections of a substantial minority of UK Net users this morning." ("BT
overdoses on Cisco security fix",
http://www.theregister.co.uk/content/55/31828.html).
One of the major ISP's in another European country experienced a similar
incident. Did the IOS upgrade in your network run smoothly? Had the routers
and the switches enough memory to upgrade smothly?
And have you experienced any attempts to exploit the Cisco IOS bug?
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Not attempts to exploit the Cisco IOS bug, but I have noticed a few
ISPs who rolled back to unpatched versions of IOS because it broke
connectivity for a bunch of their customers.
--Evan
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totojepast
Guest
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| Posted: Fri Jul 25, 2003 10:15 pm Post subject: Re: Addressing the recent Cisco IOS bug |
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| Quote: | Not attempts to exploit the Cisco IOS bug, but I have noticed a few
ISPs who rolled back to unpatched versions of IOS because it broke
connectivity for a bunch of their customers.
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Can anybody specify the ISP's who did that? |
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