ipip6_err        1792 net/ipv6/sit.c 	.err_handler	=	ipip6_err,
ipip6_err        1798 net/ipv6/sit.c 	.err_handler	=	ipip6_err,
ipip6_err        1805 net/ipv6/sit.c 	.err_handler	=	ipip6_err,