| .. SPDX-License-Identifier: GPL-2.0 | 
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 | ==================== | 
 | Seg6 Sysfs variables | 
 | ==================== | 
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 | /proc/sys/net/conf/<iface>/seg6_* variables: | 
 | ============================================ | 
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 | seg6_enabled - BOOL | 
 | 	Accept or drop SR-enabled IPv6 packets on this interface. | 
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 | 	Relevant packets are those with SRH present and DA = local. | 
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 | 	* 0 - disabled (default) | 
 | 	* not 0 - enabled | 
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 | seg6_require_hmac - INTEGER | 
 | 	Define HMAC policy for ingress SR-enabled packets on this interface. | 
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 | 	* -1 - Ignore HMAC field | 
 | 	* 0 - Accept SR packets without HMAC, validate SR packets with HMAC | 
 | 	* 1 - Drop SR packets without HMAC, validate SR packets with HMAC | 
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 | 	Default is 0. | 
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 | seg6_flowlabel - INTEGER | 
 | 	Controls the behaviour of computing the flowlabel of outer | 
 | 	IPv6 header in case of SR T.encaps | 
 |  | 
 | 	 == ======================================================= | 
 | 	 -1  set flowlabel to zero. | 
 | 	  0  copy flowlabel from Inner packet in case of Inner IPv6 | 
 | 	     (Set flowlabel to 0 in case IPv4/L2) | 
 | 	  1  Compute the flowlabel using seg6_make_flowlabel() | 
 | 	 == ======================================================= | 
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 | 	Default is 0. |