1.. SPDX-License-Identifier: GPL-2.0 2 3==================== 4Seg6 Sysfs variables 5==================== 6 7 8/proc/sys/net/conf/<iface>/seg6_* variables: 9============================================ 10 11seg6_enabled - BOOL 12 Accept or drop SR-enabled IPv6 packets on this interface. 13 14 Relevant packets are those with SRH present and DA = local. 15 16 * 0 - disabled (default) 17 * not 0 - enabled 18 19seg6_require_hmac - INTEGER 20 Define HMAC policy for ingress SR-enabled packets on this interface. 21 22 * -1 - Ignore HMAC field 23 * 0 - Accept SR packets without HMAC, validate SR packets with HMAC 24 * 1 - Drop SR packets without HMAC, validate SR packets with HMAC 25 26 Default is 0. 27 28/proc/sys/net/ipv6/seg6_* variables: 29==================================== 30 31seg6_flowlabel - INTEGER 32 Controls the behaviour of computing the flowlabel of outer 33 IPv6 header in case of SR T.encaps 34 35 == ======================================================= 36 -1 set flowlabel to zero. 37 0 copy flowlabel from Inner packet in case of Inner IPv6 38 (Set flowlabel to 0 in case IPv4/L2) 39 1 Compute the flowlabel using seg6_make_flowlabel() 40 == ======================================================= 41 42 Default is 0. 43