Should routers send redirects by default?

Christopher Morrow christopher.morrow at
Wed Aug 25 05:18:15 UTC 2010

On Tue, Aug 24, 2010 at 4:32 PM, William Herrin <bill at> wrote:
> On Fri, Aug 20, 2010 at 1:20 PM, Christopher Morrow
> <christopher.morrow at> wrote:
>> Polling a little bit here, there's an active discussion going on
>> 6man at ietf about whether or not v6 routers should:
>>  o be required to implement ip redirect functions (icmpv6 redirect)
>>  o be sending these by default
> Hi Chris,
> If you don't mind, I'd like to ask a similar question whose answers
> might be instructive for the question you asked:

sure :) (other folks should also chime in, or I thought that was the
spirit of your question...)

> Forgetting all of the theoretical constructs for a moment, has anyone
> here personally encountered an operational scenario in which ICMP
> redirects solved a problem for you that you would otherwise have found
> difficult or intransigent? Without naming names, would you describe
> the scenario's details, explain the problem that would have existed
> absent redirects and explain how redirects solved it for you?

I've never had redirects solve a problem for me.

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