[olug] bad practices at home - not relevant!

[David Walker]

and I think I mean, "the same or larger"

-----Original Message-----
From: David Walker [mailto:linux_user at grax.com]
Sent: Saturday, May 26, 2001 4:13 PM
To: olug at bstc.net
Subject: RE: [olug] bad practices at home - not relevant!


Wouldn't it be true that if the MTU for the router with the internal IP was
the same or smaller than that of the routers on either side of it that it
would not be a factor in Path MTU Discovery?

Thanks for the article puzzled.

And thanks for the illuminating message Brian.  I learned a lot from it.
I'd appreciate it if you'd try to offer some type of explanation in the
future as not all of us share your genius or knowledge.

-----Original Message-----
From: puzzled [mailto:puzzled]On Behalf Of puzzled
Sent: Saturday, May 26, 2001 3:09 PM
To: olug at bstc.net
Subject: Re: [olug] bad practices at home - not relevant!

   yeah yeah yeah, works fine outbound from you because the IP is
reachable for you, won't work on the return leg back from the remote host.
Doesn't seem to cause much of a problem in real life.

  A much more verbose explanation can be found below.

http://www.worldgate.ca/~marcs/mtu/

Brian Roberson wrote:

> Do you understand PMTU discovery? Obviously not.
>
> -----Original Message-----
> From: puzzled [mailto:puzzled] On Behalf Of puzzled
> Sent: Saturday, May 26, 2001 8:34 AM
> To: olug at bstc.net
> Subject: Re: [olug] bad practices at home - not relevant!
>
>    You can't route *to* an address from private space but you can route
> *through* one as long as its within a single autonomous system.
>
>     This technique is used by those that have a large AS and don't want
> to burn up/fragment their public IPs on purely internal devices.
>
>     Looks funny, works great! Don't think any more about it ...
>
> Vincent wrote:
>
> > Has anyone else done a traceroute to or from an @home system lately?
> > I'm seeing private/reserved 10. addresses!?!
> >
> > 10.88.40.53 (10.88.40.53)  9.320 ms  9.285 ms  24.627 ms
> >
> > ...that's pretty lame...
> >
> >



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