Re: OSPF TTL Security

From: Marko Milivojevic <markom_at_ipexpert.com>
Date: Tue, 26 Apr 2011 11:21:23 -0700

Well, every CCIE can bring a guest, so I guess not :-)

--
Marko Milivojevic - CCIE #18427
Senior Technical Instructor - IPexpert
FREE CCIE training: http://bit.ly/vLecture
Mailto: markom_at_ipexpert.com
Telephone: +1.810.326.1444
Web: http://www.ipexpert.com/
On Tue, Apr 26, 2011 at 11:19, Darby Weaver <darby.weaver_at_gmail.com> wrote:
> I know... am I like the only non-CCIE who gets an exclusive honorary invite?
>
> Darby
>
> http://www.darbyslogs.blogspot.com
>
>
>
> On Tue, Apr 26, 2011 at 2:17 PM, Marko Milivojevic <markom_at_ipexpert.com>
> wrote:
>>
>> This is an awesome option to be aware of in a security conscious
>> network, no doubt. There are also countless others. Since this is a
>> study list with the primary focus on CCIE Lab preparation, I think
>> it's very important to keep an eye on that.
>>
>> Cisco Live is indeed in July and we're all looking forward hanging
>> around in CCIE lounge and attending CCIE party :-)
>>
>> --
>> Marko Milivojevic - CCIE #18427
>> Senior Technical Instructor - IPexpert
>>
>> FREE CCIE training: http://bit.ly/vLecture
>>
>> Mailto: markom_at_ipexpert.com
>> Telephone: +1.810.326.1444
>> Web: http://www.ipexpert.com/
>>
>> On Tue, Apr 26, 2011 at 11:12, Darby Weaver <darby.weaver_at_gmail.com>
>> wrote:
>> > Recall guys...B  Some of are actually production engineers and we work in
>> > the
>> > real world with real networks.
>> >
>> > This is a nice option to be aware of and Cisco Live is in July....
>> >
>> > Darby
>> >
>> > http://www.darbyslogs.blogspot.com
>> >
>> >
>> >
>> > On Tue, Apr 26, 2011 at 1:38 PM, Steve Di Bias <sdibias_at_gmail.com>
>> > wrote:
>> >>
>> >> Well I guess that's why I didn't know this command then, because I read
>> >> most of the OSPF 12.4T config guide and didn't remember seeing it!
>> >> Thanks
>> >> Marko!
>> >>
>> >> On Tue, Apr 26, 2011 at 10:32 AM, Marko Milivojevic
>> >> <markom_at_ipexpert.com>
>> >> wrote:
>> >>>
>> >>> I would just like to point out that this is not an option available in
>> >>> the IOS version specified to be in the lab (12.4T). While it's
>> >>> certainly very interesting, at this time students preparing for the
>> >>> CCIE R&S lab need not be concerned with it... Once the IOS is updated
>> >>> to 15.1, yes :-).
>> >>>
>> >>> --
>> >>> Marko Milivojevic - CCIE #18427
>> >>> Senior Technical Instructor - IPexpert
>> >>>
>> >>> FREE CCIE training: http://bit.ly/vLecture
>> >>>
>> >>> Mailto: markom_at_ipexpert.com
>> >>> Telephone: +1.810.326.1444
>> >>> Web: http://www.ipexpert.com/
>> >>>
>> >>> On Tue, Apr 26, 2011 at 09:51, Darby Weaver <darby.weaver_at_gmail.com>
>> >>> wrote:
>> >>> > At your service sir!
>> >>> >
>> >>> > I thought it was noteworthy and often over-looked...
>> >>> >
>> >>> > Know your options.
>> >>> >
>> >>> > Darby
>> >>> >
>> >>> > http://www.darbyslogs.blogpsot.com
>> >>> >
>> >>> > Keep in touch Steve.
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>> > On Tue, Apr 26, 2011 at 11:35 AM, Steve Di Bias <sdibias_at_gmail.com>
>> >>> > wrote:
>> >>> >
>> >>> >> Wow, I knew BGP implemented a command like this, but had no idea
>> >>> >> about
>> >>> >> this
>> >>> >> within OSPF. Thanks!
>> >>> >>
>> >>> >>
>> >>> >> On Tue, Apr 26, 2011 at 8:22 AM, <darby.weaver_at_gmail.com> wrote:
>> >>> >>
>> >>> >>> Anyone want to discuss this topic?
>> >>> >>>
>> >>> >>> ttl-security all-interfaces [hops hop-count]
>> >>> >>>
>> >>> >>> ip ospf ttl-security [hops hop-count | disable]
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>> http://www.cisco.com/en/US/docs/ios/iproute_ospf/configuration/guide/iro_ttl.html
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>> http://www.cisco.com/en/US/docs/ios/iproute_ospf/command/reference/iro_osp2.html
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>> http://www.cisco.com/en/US/docs/ios/ios_xe/iproute_ospf/configuration/guide/iro_ttl_xe.pdf
>> >>> >>>
>> >>> >>>
>> >>> >>> Blogs and organic groups at http://www.ccie.net
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>> _______________________________________________________________________
>> >>> >>> Subscription information may be found at:
>> >>> >>> http://www.groupstudy.com/list/CCIELab.html
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>>
>> >>> >>
>> >>> >>
>> >>> >> --
>> >>> >> -Steve Di Bias
>> >>> >>
>> >>> >
>> >>> >
>> >>> >
>> >>> > --
>> >>> > Darby Weaver
>> >>> > Network Engineer
>> >>> >
>> >>> >
>> >>> > darbyweaver_at_yahoo.com
>> >>> >
>> >>> >
>> >>> > Blogs and organic groups at http://www.ccie.net
>> >>> >
>> >>> >
>> >>> > _______________________________________________________________________
>> >>> > Subscription information may be found at:
>> >>> > http://www.groupstudy.com/list/CCIELab.html
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>
>> >>
>> >>
>> >> --
>> >> -Steve Di Bias
>> >
>> >
>> >
>> > --
>> > Darby Weaver
>> > Network Engineer
>> >
>> >
>> > darbyweaver_at_yahoo.com
>> >
>
>
>
> --
> Darby Weaver
> Network Engineer
>
>
> darbyweaver_at_yahoo.com
Blogs and organic groups at http://www.ccie.net
Received on Tue Apr 26 2011 - 11:21:23 ART

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