RE: NAT and MTU
> In the last episode (Jul 08), Brent Wiese said: > > I have a machine that is being double-NAT'd. > > > > Would it make sense to set the MTU lower to account for the NAT > > overhead? > > > > It makes sense to me as I know MTU, but I like to check in case my > > thinking isn't right. :) > > There is no overhead; all NAT does is rewrite IP addresses in > the header (and in some data packets of certain protocols > like FTP). It adds no extra data. > I never messed w/ NAT enough to have learned this. There's always something to learn! Thanks to all who responded. Brent ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: NAT and MTU
In the last episode (Jul 08), Brent Wiese said: > I have a machine that is being double-NAT'd. > > Would it make sense to set the MTU lower to account for the NAT > overhead? > > It makes sense to me as I know MTU, but I like to check in case my > thinking isn't right. :) There is no overhead; all NAT does is rewrite IP addresses in the header (and in some data packets of certain protocols like FTP). It adds no extra data. -- Dan Nelson [EMAIL PROTECTED] ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
RE: NAT and MTU
> -Original Message- > From: Brent Wiese [mailto:[EMAIL PROTECTED] > Sent: Tuesday, July 08, 2003 8:45 PM > To: [EMAIL PROTECTED] > Subject: NAT and MTU > > > I have a machine that is being double-NAT'd. > > Would it make sense to set the MTU lower to account for the > NAT overhead? > > It makes sense to me as I know MTU, but I like to check in > case my thinking > isn't right. :) Why would it matter? Does NAT increase the overall datagram size? I thought it just changed addresses and stored connection information in a table somewhere. If this is the case, just having NAT, even 2x, isn't going to make it any more likely that your traffic will fragment. -Will ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
