Hi all, > Am 23.03.2020 um 06:00 schrieb Victor Sudakov <[email protected]>: > I've noticed that a newly created gre0 interface has the expected "mtu 1476" > value, but a newly created gif0 interface has "mtu 1280", why would the > default be so low?
gif is frequently used as the innermost encapsulation like in gif tunnel across host mode IPsec. Then there might be PPPoE, too. Possibly a VLAN tag ... So most probably the idea is to go as low as possible for arbitrary additional encapsulations while still satisfying the minimum requirement for IPv6. For the others: no idea, I guess historical ;-) Patrick -- punkt.de GmbH Patrick M. Hausen .infrastructure Kaiserallee 13a 76133 Karlsruhe Tel. +49 721 9109500 https://infrastructure.punkt.de [email protected] AG Mannheim 108285 Geschäftsführer: Jürgen Egeling, Daniel Lienert, Fabian Stein _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[email protected]"
