[c-nsp] Tunnel Interfaces and MTU

Dennis drockz at gmail.com
Fri Mar 30 05:59:21 EST 2007


Yes... I use it on DMVPN tunnels to prevent fragmentation from breaking some
apps...

D



On 3/29/07, Kurt Bales <kwbales at kwbales.net> wrote:
>
> Hey Guys,
>
> We have an arrangement where we have a hub-and-spoke tunnel arrangement in
> our network, where a central router is terminating tunnels from remote
> locations that are not directly terminated on the WAN. On the tunnel
> interfaces we currently have the mtu set to 1400. Should we also be using
> mss-adjust to enable the router to compensate for the lower MTU?
>
> Everything I have read on MSS-Adjust indicates its for use with PPPoE, but
> will it work for other situations where you need to lower the MTU between
> interfaces?
>
>
> Regards,
>
> Kurt
>
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